The perimeter of a rectangle is 220 inches. The ratio of its length to its width is 7:3 Find the area of the rectangle

Answers

Answer 1

Given:

Perimeter of rectangle = 220 inches

Ratio of length to width = 7:3

Use the perimeter of a rectangle formula:

P = 2(L + W)

220 = 2(L + W)

Divide both sides by 2:

\(\begin{gathered} \frac{220}{2}=\frac{2(L+W)}{2} \\ \\ 110=L+W \\ \\ \text{Subtract W from both sides:} \\ 110-W=L+W-W \\ \\ 110-W=L \end{gathered}\)

Take the ratio:

7W : 3L

7W = 3L

Divide both sides by 3:

\(\frac{7}{3}W=L\)

Substitute 7/3 W for L in (110 -W = L)

\(\begin{gathered} 110-W=\frac{7}{3}W \\ \\ \end{gathered}\)

Multiply through by 3:

\(\begin{gathered} 330-3W=7W \\ \\ 330=7W\text{ + 3W} \\ \\ 330=10W \\ \\ \frac{330}{10}=W \\ \\ 33=W \end{gathered}\)

To find L, we have:

110 - W = L

110 - 33 = L

77 = L

To find the Area, use the formula:

Area = Length x Width

Area = 77 x 33 = 2541 square inches

ANSWER:

2541 square inches


Related Questions

Find the equation of a line that passes through the points (1,-2) and (3,-4). Express your final answer in slope-intercept form.

Find the equation of a line that passes through the points (1,-2) and (3,-4). Express your final answer

Answers

\(\text{Given that,}\\\\(x_1,y_1) = (1,-2)~~ \text{and}~~ (x_2,y_2) = (3,-4)\\\\\text{Slope,}~ m= \dfrac{y_2-y_1}{x_2 -x_1} = \dfrac{-4+2}{3-1} = -\dfrac 22 = -1\\\\\text{Equation with given points,}\\\\y-y_1 = m(x-x_1)\\\\\implies y +2 = -1(x-1)\\\\\implies y = -x+1 -2\\\\\implies y = -x-1\\\\\text{This is the slope-intercept form(y =mx+b).}\)

Answer:

y=-x-1

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-4-(-2))/(3-1)

m=(-4+2)/2

m=-2/2

m=-1

y-y1=m(x-x1)

y-(-2)=-1(x-1)

y+2=-x+1

y=-x+1-2

y=-x-1

d = √(x2 - x1)2 + (y2 - y1)2, what is the distance between point (3, 2) and point (5, 4) rounded to nearest 10th

Answers

The distance between the is 3m

A bank charges 12% Simple interest p.a on cash loans to its clients.tito has asked for R10000loan amount and has promised to repay the the loan over 4years


Calculate the interest which Tito has to pay on loan ?


Determine the total amount to be paid back



Determine the monthly repayment amount

Answers

If Tito took a loan of $10000 from a bank to be repaid within 4 years, at 12% Simple interest per annum, then, he will have to pay overall $4800 as interest to the bank over 4 years and a total payment of $14800 at the end of the 4th year to repay and close off the loan.

As per the question statement, a bank charges 12% Simple interest per annum on cash loans to its clients and Tito took a loan of $10000 from the same bank to be repaid within 4 years.

We are required to calculate the overall interest Tito has to pay to bank if he repays and closes the loan at the end of 4th year, and also to calculate the total payment required to repay and close off the loan at the end of the 4th year.

To solve this question, we need to know the formula to calculate the interest amount in case of simple interest which goes as

Interest (I) \(=(\frac{P*R*T}{100} )\)

where, "P" = Principle amount of Loan,

"R" = Rate of simple interest charged on the principle per annum, and

"T" = Time period within which, the loan is to be repaid.

Here, (P = 10000), (R = 12%) and (T = 4). Then, the overall interest Tito will have to pay at the end of 4th year  = \((\frac{10000*12*4}{100}) = (100*12*4)=(48*100)=4800\)

And total amount to be paid to repay and close of the loan at the end of 4th year will be = $[4800 + 10000] = $14800.

Simple interest: As the name itself suggests, "Simple" interest refers to the straightforward crediting of cash flows associated with some investment or deposit.

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Help me with this again please

Help me with this again please

Answers

The one on the bottom left.

Which sentence correctly compares the two numbers 5.395 and 5385 ?
5.395= 5385
5.385 > 5.395
5395< 5.385
5385 < 5.395

Answers

The sentence that correctly compares the two numbers is 5385 > 5.395

What is the correct sentence?

Here are inequality signs and what they mean:
Note that

> means greater than< means less than≥ means greater than or equal to ≤ less than or equal to

5385 is greater than 5.385. Thus, the correct statement is 5385 > 5.395.

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find the exact value of x. 45 degree and 10 side

Answers

Answer:

The exact value of the other leg is 10.

Step-by-step explanation:

Finding the exact value of x given a 45 degree angle and a side length of 10 can be done using trigonometry. In a 45-45-90 right triangle, the two legs are congruent and the hypotenuse is equal to the square root of 2 times the length of the legs.

Therefore, if one leg is 10, the hypotenuse is 10 times the square root of 2. To find the length of the other leg, we can use the Pythagorean theorem:

c^2 = a^2 + b^2, where c is the hypotenuse, a and b are the legs of the right triangle.

Substituting known values, we get:

(10√2)^2 = 10^2 + b^2

200 = 100 + b^2

b^2 = 100

b = 10

Therefore, the exact value of the other leg is 10.

someoneeeee helppppop asappp 1st and second option positive or negative

someoneeeee helppppop asappp 1st and second option positive or negative

Answers

The answer is a positive for the first and second opinion because a negative X negative always leaves you with a positive.

Round to the nearest thousand 5.2182

Answers

Answer:

5.218

Step-by-step explanation:

5 or more, you add one. Four or less, you change it to zero.

Find the amount of air needed to fill a basketball whose diameter is 9.45 in. Use 3.14 for

Answers

Answer:

The amount of air needed to fill the basketball is approximately 533.16 cubic inches

Step-by-step explanation:

To find the amount of air needed to fill a basketball, we need to first calculate its volume. We can use the formula for the volume of a sphere, which is V = (4/3)πr^3, where π is approximately 3.14 and r is the radius of the sphere.

Since the diameter of the basketball is given, we need to first find the radius by dividing the diameter by 2:

r = 9.45 in / 2 = 4.725 in

Now we can plug in the value of r into the formula for the volume:

V = (4/3)πr^3 = (4/3)π(4.725 in)^3 = 533.16 in^3

Therefore, the amount of air needed to fill the basketball is approximately 533.16 approx cubic inches.

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if i rolled a dice 50 times and 20 out of the fifity times I got 5 what would the percent be

Answers

Answer:

The percent would be 10 Im guessing

Step-by-step explanation:

Hope this helped :)

identify the simplest polynomial function having integer coefficients with the given zeros. 0, -3, sqrt 2

Answers

Answer:

\(x^4+3x^3-2x^2-6x\)

Step-by-step explanation:

0 is a solution of x=0

-3 is a solution of x+3=0

√2 is a solution of x²-2=0

Thus, if these are the factors of the polynomial, then the simplest polynomial function with integer coefficients would be:

\(x(x+3)(x^2-2) = (x^2+3x)(x^2-2) = x^4-2x^2+3x^3-6x=x^4+3x^3-2x^2-6x\)

Mario needs a loan to buy a tractor for his farm. He qualified for a loan at 2 different banks.
.
First Bank of Trust
Loan Amount: $25,000
Annual Simple Interest
Rate: 6.5%
Loan Length: 4 years
What is
.
Enter your answer in the box.
.
Valor Bank
Loan Amount: $25,000
Annual Simple Interest
Rate: 4%
Loan Length: 6 years
total amount Mario will pay, including loan amount and interest, for the First Bank of Trust loan?

Answers

Answer:$31,500

Step-by-step explanation:

To calculate the total amount Mario will pay, including the loan amount and interest, for the loan from First Bank of Trust, we need to calculate the interest and add it to the loan amount.

The formula to calculate simple interest is:

Interest = (Loan Amount) x (Interest Rate) x (Loan Length)

Let's plug in the values given:

Loan Amount = $25,000

Interest Rate = 6.5% (or 0.065 as a decimal)

Loan Length = 4 years

Interest = $25,000 x 0.065 x 4 = $6,500

Now, let's calculate the total amount Mario will pay:

Total Amount = Loan Amount + Interest = $25,000 + $6,500 = $31,500

Therefore, the total amount Mario will pay, including the loan amount and interest, for the First Bank of Trust loan is $31,500.

part A-What is the longest poster you could fit in the box?
Express your answer to the nearest tenth of a foot.

part B-Explain why you can fit only one maximum-length poster in the box, but you can fit multiple 4 foot posters in the same box.

PLEASE HELP QUICKLY

part A-What is the longest poster you could fit in the box?Express your answer to the nearest tenth of

Answers

Based on the information, we can infer that the longest poster that we can store in the box is one with the following measurements: 0.8ft x 2.2ft x 3ft.

How to identify the measurements of the poster that match the measurements of the box?

To identify the measurements of the poster that coincide with the measurements of the box, we must see what the measurements of the box are. Once we identify this information, we can know what are the maximum measurements that we could store in that box.

According to the above, the maximum measurements that a poster can have to fit in that box are:

0.8ft x 2.2ft x 3ft.

Additionally, we can infer that several 4-foot posters will fit because they can be arranged in a different way that occupy the space widthwise instead of lengthwise.

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Some descriptive statistics for a Set of test scores are shown above for this test a certain student has a standardized score of z=-1.2 what score did the student receive on the test

Answers

Complete Question

The complete question is shown on the first uploaded image

Answer:

The score of the student is  x = 779.42

Step-by-step explanation:

Generally we can mathematically represent the z-score as

         \(z = \frac{x - Mean}{ stDev}\)

Here x is the score of the student

substituting 1045.7 for the Mean, 221.9 for the stDev and -1.2 for z we have  

          \(-1.2 = \frac{x - 1045.7 }{ 221.9}\)

=>       \(-266.28 = x -1045.7\)

=>     x  =  -266.28 + 1045.7

=>     x = 779.42

Some descriptive statistics for a Set of test scores are shown above for this test a certain student

The student scored 779.42 for him to have a z score of - 1.2;

z score is used to determine by how many standard deviations the raw score is above or below the mean.

The z score is given by:

\(z=\frac{x-\mu}{\sigma/ } \\\\where\ x\ is\ raw\ score,\mu\ is\ mean, \sigma\ is\ standard\ deviation\)

Given that μ = 1045.7, σ = 221.9 Hence for z = -1.2:

\(-1.2=\frac{x-1045.7}{221.9} \\\\x=779.42\)

The student scored 779.42 for him to have a z score of - 1.2;

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Solve the system by the addition method. x + 3y = 6 3x + 4y = −2

Answers

The solution to the system is x = -6 and y = 4.

To solve the system by the addition method, we want to add the equations together in a way that will eliminate one of the variables.

Let's start by multiplying the first equation by -3 to get -3x - 9y = -18, and then add the second equation to it:

-3x - 9y = -18

+ 3x + 4y = -2

-------------

    -5y = -20

Now we can solve for y by dividing both sides by -5:

y = 4

We can substitute y=4 into one of the original equations, say x+3y=6, to solve for x:

x + 3(4) = 6

x + 12 = 6

x = -6

So the solution to the system is x = -6 and y = 4.

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i still need help 1 more after this

i still need help 1 more after this

Answers

Answer:

4.2

Step-by-step explanation:

0.2^(3)-:0.4*60+3.6-:1.2 = 4.2

Answer:

4.2

Step-by-step explanation:

In ΔABC, the measure of ∠C=90°, BC = 69 feet, and CA = 98 feet. Find the measure of ∠B to the nearest tenth of a degree.

Answers

The answer is 54.9

B=tan (98/69) B=54.8513 = 54.9

14Y - 7y = 35. solve for y

Answers

Answer:

y = 5

Step-by-step explanation:

\(14y-7y=35\\7y=35\\y=5\)

14 minus 7 is 7

7Y is equal to 35

divide both sides by 7 is equal to 5

Find the supplement of an angle that measures 20 degrees.
A) 50 degrees
B) 70 degrees
C) 90 degrees
D) 160 degrees

Answers

Answer:

160 degrees

Step-by-step explanation:

Answer:I think it is D

Step-by-step explanation:

Select the correct locations on the graph.
Select the lines that represent functions.

Select the correct locations on the graph.Select the lines that represent functions.

Answers

Answer:

i need that answer to

Step-by-step explanation:

Answer:

the top on the right.

Step-by-step explanation:

What is the equation for the line in slope-intercept form?



Enter your answer in the box.

What is the equation for the line in slope-intercept form?Enter your answer in the box.

Answers

(16-0)/(2-0)=8 oajfowbf

Answer:

The answer is y = 8x + 0

Step-by-step explanation:

I hope that helps. :)

Pls mark me Brainliest.

A cafeteria purchases milk from one of three providers each week, depending on what other items need to be purchased. The probability of shopping at each store and the cost of one gallon of milk are shown in the table below. Probability and Milk Cost by Store Store Probability Milk Cost per Gallon A 30% $3.00 B 10% $3.50 C 60% $2.75 The cafeteria should budget $ on average for one gallon of milk.

Answers

Answer:

The cafeteria should budget $2.90 on average for one gallon of milk.

Step-by-step explanation:

The cafeteria should budget $ 2.90 on average for one gallon of milk.

Percentage What is percentage?

Percentage, a comparative figure denoting one hundredth of any quantity. One percent (symbolised as 1%) is equal to one tenth of something; hence, 100 percent denotes the full thing, and 200 percent defines twice the amount that is stated. percentage

How to calculate percentage?

Divide one number by the other and multiply the result by 100 to determine the percentage difference between the two values.

Calculation for the price of one gallon of milk:

Cafeteria purchases 30% of milk from A at cost $3.00 for one gallon.= Calculate 30% of 3.00,

= 3×(30/100)

= 0.9

Cafeteria purchases 10% of milk from B at cost $3.50 for one gallon.

Calculate 10% of 3.50,

= 3.50×(10/100)

= 0.35

And,cafeteria purchases 60% of milk from C at cost $2.75 for one gallon.

Calculate 60% of 2.75,

= 2.75×(60/100)

= 1.65

Average cost for one gallon of milk.

= 0.9 + 0.35 + 1.65

= 2.90

Therefore,the cost for on an average one gallon of milk is $2.90.

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d/5 = -6, what does d = ?

Answers

Answer:

d=-30

Step-by-step explanation:

Answer:-30

Step-by-step explanation: To find your answer, we can multiply 5 and -6 to figure out what divided by 5 equals. We then get our answer. -30

GIVING BRAILIEST PLEASEE!! Given an exponential function for compounding interest, A(t) = P(0.82)t, what is the rate of decay?
A. 18%
B. 8%
C. 0.82%
D. 82%

Answers

Answer:A

Step-by-step explanation:

To find the rate of decay, we need to use the formula A(t) = P(0.82)^t, where A(t) is the amount after t years, P is the initial amount, and 0.82 is the decay factor.

The decay factor is equal to 1 minus the decay rate, so we can solve for the decay rate as follows:

0.82 = 1 - r

r = 1 - 0.82

r = 0.18

Therefore, the rate of decay is 18%, which corresponds to answer choice A.

Answer:

A

Step-by-step explanation:

What is 3,879 rounded to nearest 100

Answers

Answer: 3,900

Step-by-step explanation: Look at 3,879. The eight is in the hundreds place so the seven would tell it to round up or down. 5 or more means round up, so 8 would turn into 9. The other 2 numbers turn into zeros. Thus, 3,879 turns into 3,900.

(-82)+(-47)-(+33)do u all know this answer

Answers

Answer:

-157

Step-by-step explanation:

Answer:  -162

Hope this helps you

Step-by-step explanation:

subtract and add

Help me! I need help with my homework !

Help me! I need help with my homework !

Answers

Answer:

Rounding to the nearest hundredth, the area of the shaded region is approximately 167.91 square yards.

Step-by-step explanation:

To find the area of the shaded region between two circles with the same center, we need to subtract the area of the smaller circle from the area of the larger circle.

The area of the larger circle is:

A_outer = πr_outer^2

= π(11.9 yd)^2

≈ 445.03 yd^2

The area of the smaller circle is:

A_inner = πr_inner^2

= π(9.4 yd)^2

≈ 277.12 yd^2

Therefore, the area of the shaded region is:

A_shaded = A_outer - A_inner

≈ 445.03 yd^2 - 277.12 yd^2

≈ 167.91 yd^2

Hope this helps! Sorry if it doesn't. If you need more help, ask me! :]

The original plan for assigning telephone numbers that you investigated in
Applications Task 4 was implemented in
1947. At that time, the supply of numbers was expected to last for 300 years. However, by the 1970s the numbers were already starting to run out. So, the numbering plan
had to be modified. In this task, you will count the number of different phone numbers that were available in 2012.
a. For three-digit area codes, the first digit cannot be a 0 or a 1. Assuming no additional restrictions, how many three-digit area codes are possible under
this plan?
b. Certain area codes are classified as "Easily Recognizable Codes" (BRCs).
ERCs designate special services, like 888 for toll-free calls. The requirement for an ERC is that the second and third digit of the area code must be the same. The first digit again cannot be a 0 or a 1. How many ERCs are there?
c. Consider the seven digits after the area code. As with the area code, the first digit of the three-digit local prefix cannot be a 0 or a 1. The remaining six digits for the local number have no restrictions. How many of these seven-digit phone numbers are possible?
d. Assuming only the 0 and 1 restrictions in Parts a and c, how many ten-digit phone numbers are possible?

Answers

a. Assuming no additional restrictions, there are  800 possible three-digit area codes.

b. Considering ERCs, there are  80 ERCs.

c. For the seven digits after the area code, there are \(8 \times 10^6 = 8,000,000\)  possible seven-digit phone numbers.

d. Assuming only the 0 and 1 restrictions from parts a and c, the number of possible ten-digit phone numbers is 800 \(\times\) 8,000,000 = 6,400,000,000.

a. For three-digit area codes, the first digit cannot be 0 or 1.

Assuming no additional restrictions, there are 8 possibilities for the first digit (2-9) and 10 possibilities for each of the remaining two digits (0-9). Therefore, the total number of three-digit area codes possible under this plan is \(8 \times 10 \times 10 = 800.\)

b. For an ERC (Easily Recognizable Code), the second and third digits of the area code must be the same, and the first digit cannot be 0 or 1. There are 8 possibilities for the first digit (2-9) and 10 possibilities for the third digit (0-9).

Since the second digit must be the same as the third digit, there is only 1 possibility.

Therefore, the total number of ERCs is \(8 \times 1 \times 10 = 80.\)

c. For the seven digits after the area code, the first digit of the three-digit local prefix cannot be 0 or 1.

There are 8 possibilities for the first digit (2-9) and 10 possibilities for each of the remaining six digits (0-9).

Therefore, the total number of seven-digit phone numbers possible is 8 * \(10\times 10 \times 10 \times 10 \times 10 \times 10 = 8,000,000.\)

d. Assuming only the 0 and 1 restrictions from parts a and c, the number of possible ten-digit phone numbers can be calculated by multiplying the number of possibilities for each digit position.

For the area code (part a), there are 800 possibilities.

For the seven digits after the area code (part c), there are 8,000,000 possibilities.

Therefore, the total number of ten-digit phone numbers possible is 800 * 8,000,000 = 6,400,000,000.

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6 times the sum of a number q and 9

Answers

Answer:

6(q + 9)

Step-by-step explanation:

Need help with the answer

Need help with the answer

Answers

Answer:

sine(∡DAB) = 0.5

Step-by-step explanation:

∡\(ACD=\)∡\(ADB\) = 60°

∡\(DAB=(180-90-60)^{o} =30^{o}\)

\(sin(30^{o})= 0.5\)

Hope this helps

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