To solve 12.5x = 215, you would ... 12.5 on both sides of the equation

Answer:

Step-by-step explanation:

reason 1:

opening of brackets to solve the expression

reason 2:

in multiplication order is followed i.e. the number always lead the variable in the expression

reason 3:

for clarification brackets are added to multiply like terms i.e. numbers with numbers and variable with the variable

reason 4:

the solved and simplified expression is delivered as a result

Ruth’s new floor cost $432.

The cost can be calculated as follows.

First, calculate the area of dining room. Use the formula of rectangle area (width x length)

Area = width x length

= 6 yd x 9 yd

= 54 sq yd

Second, calculate the total cost.

Cost = 54 sq yd x $ 8 per sq yd

= $ 432

Hence it cost $ 432 to install the new wood floor.

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Answer:

$432

Step-by-step explanation:

1. Find the area of the dining room. The equation for finding the area is Length x Width = Area, so, 9x6=54 square yards.

2. Then, since each square yard is $8.00, multiply 54 and 8 to get $432.

Answer:

y=(x-2)^2

Step-by-step explanation:

just simply change the sign.

Answer:

110/3 or 36 2/3

Step-by-step explanation:

4 3/10-2 7/15=11/6

11/6•20=110/3

Answer:

110/3 or 36 2/3

Step-by-step explanation:

Evaluate the parenthesis first which is 11/6. Multiply that by 20 to get 110/3 or 36 2/3

Answer:

The answer will be 120

Step-by-step explanation:

When you multiply the area of 30 by 4 you will get 120

Answer:

Its the number 3

Step-by-step explanation:

Answer:A

Step-by-step explanation:

Please give brainliest i only need a few more to rank up

Answer:

B)

Step-by-step explanation:

300, since the line inside the box is on 300

Hope that helps!

Answer:

y = -x

Step-by-step explanation:

it because the reflection change the value of x become -y

so the reflection we can use is the line y = -x

Answer:

D

Step-by-step explanation:

took the test

Answer:

3,300 i THINK i used a calculator

Step-by-step explanation:

Answer:

452.4 square feet

Finding the diameter:

Since there are 3 centimeters for every 4 feet, we need to divide 18 by 3

18 ÷ 3 = 6 which means the ratio is scaled up by 6 so we multiply 4 by 6

4 · 6 = 24 that means that the diameter of the base of the fountain is 24 feet

Finding the area:

Since the area of a circle is πr² we need to divide the diameter by 2 to get the radius(r)

24 ÷ 2 = 12 now we need to square 12 (which is multiplying it to itself ex. 5² is 5 · 5)

12 · 12 = 144 now we multiply it by π

π · 144 ≈ 452.38934 lastly we round it

452.4 square feet

Hope this helps!

Negative 3, negative 2.4, negative 1.5, negative 2 and one-fourth, negative 1 and one-eighth

Hope my answer helps you✌️

Answer:

a.  the relationships between the area of walls left to paint and the time they have been working

b. Company 1

c. Company 2

d. Company 1 = 147 hours, company 2 = 162 hours

Step-by-step explanation:

a. The linear functions model the relationships between the area of walls left to paint and the time they have been working.

b. Company 1 is painting faster because the first line has a slope of -1000/7 while the second line has a slope of -100/9, which means Company 1 is painting 100 ft^2 every 7 hours while Company 2 is painting 100 ft^2 every 9 hours. Therefore Company 1 is going faster.

c. Company 2 had less area to paint when they began because at the 0 hour mark, company 1 had 2100 ft^2 to paint and company 2 had 1800 ft^2 to paint.

d. Company 1 will take 21*7=147 hours to finish. Company 2 will take 18*9=162 hours to finish.

I hope these solutions were helpful. Happy mathing!

Answer:

p + 166 = 249; p = 83 pages

Step-by-step explanation:

Just re-arrange it

p + 166 = 249

p = 249 - 166

p = 83

Answer: 2.26

Step-by-step explanation: The formula for finding out the radius of a cylinder when given the volume and height is (r) = √(V / π × h)

V is the volume, π is equal to 3.14, and h is the height

(r) = √(320/ π × 20)

(r) = √(320/ 3.14 × 20)

(r) = √(320/ 62.8)

(r) = √(5.09)

(r) = 2.256

when you round 2.256 to the nearest hundredth is 2.26 cm  

I hope this helps              

Answer:305

Step-by-step explanation:

(2/9)*450=100

(1/10)*450=45

100+45=145

450-145=305

Answer:

x = 147/5 and y = 78

Step-by-step explanation:

First solve by substitution and put 78 into y in -5x + 2y = 9 so you get 147/5

then plug 147/5 into x and find y

Answer:

x = -147/5 , y = 78

Step-by-step explanation:

- 5x + 2y = 9

Y = 78

Substitute the second equation into the first

-5x + 2(78) = 9

-5x +156 = 9

Subtract 156 from each side

-5x+156-156 = 9-156

-5x =147

Divide each side by -5

-5x/-5 =147/-5

x = -147/5

Answer: Beth is correct

Step-by-step explanation:

Answer:

Step 1

Step-by-step explanation:

Step 1 is incorrect because he forgot to use the distributive property.

Answer:

7

Step-by-step explanation:

(2)(3)+(5−3−1)4

 6+(5−3−1)4

   6+(2−1)4

     6+14

      6+1

        7

Answer:

10.93 is your answer bud

Answer:

The answer is 11

Step-by-step explanation:

5 1/2 = 5.5

5.5 x 2 = 11

Hope this helps

Answer:

11

Step-by-step explanation:

5 1/2 = 11/2

11/2 * 2 = 22/2 = 11

Here are the pairs matched with their products:

- (-5)(4.2) matches with -21

- (-7)(-3) matches with 21

- (2.5)(-9) matches with -22.5

Pairs (4) and (5) do not have corresponding products in the given options.

The function for the points are  y = -15x - 5

From the information given, we have that;

The points are;

(1/3,0) (-2 3/4,0) and (0,-5)

Using the point-slope form of a linear equation, we have;

y - y₁ = m(x - x₁)

Such that;

Using (1/3, 0) and (0, -5), we have that the slope is;

m = (0 - (-5))/0 -1/3)

expand the bracket

= 5 / (-1/3)

= -15

Now, take any of the given points and substitute the values

Using (1/3, 0), we get;

y - 0 = -15(x - 1/3).

y = -15x - 5.

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The function for the points solved by  (1/3,0) (-2 3/4,0) and (0,-5) solved by point slope form is \(a=-15b-5\)

We have given the points:

(1/3,0) (-2 3/4,0) and (0,-5)

Using the formula of linear equation

\(a-\)\(a_{1}\)\(=x[b-b_{1}]\)                                                          

Where we will consider (1/3,0) = \(a-a_{1}\) and (0,-5) = \(b-b_{1}\)

that is 1/3 = \(a\), 0 = \(a_{1}\) and

0 = \(b\), -5 = \(b_{1}\)

\(x\) refers to the slope of line (take any variable)

Now for finding the value of \(x\),

\(x=a-a_{1}/b-b_{1}\)

inserting the values,

\(x=[0-[-5]]/[0-1/3]\\x= -15\)

Substitute the value of \(x\) in the equation

\(a-0=-15[b-1/3]\)

By simplifying the equation, we get

\(a=-15b-5\)

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Answer:

The music director can make 15 groups of performers with 6 sixth grade students and 5 seventh grade students in each group.

Step-by-step explanation:

A school chorus has 90 sixth-grade students and 75 seventh-grade students.

Factor these two numbers:

Find GCF(90,75):

Now,

Therefore, the music director can make 15 groups of performers with 6 sixth grade students and 5 seventh grade students in each group.

Answer:

x<-10

Step-by-step explanation:

-4(-4 + x) > 56

16-4x>56

-4x>40

4x<-40

x<-10

Answer:

its proportional for example u multiply 2•3 to get 6, 3•3 to get 9, 4•3 to get 12 and 5•3 to get 15

Step-by-step explanation:

Considering area (A) of garden as 30 square feet:

30 = x(2x+7)

Now we need to expand it:

x(2x+7) = 2x^2 + 7x

2x^2 + 7x = 30

Adding this into an Algebra calculator gives us 5/2 or 2.5

So x = 2.5

To prove this:

2(2.5) + 7 = 12

14 * 2.5 = 30

Answer: 0g

Step-by-step explanation:

0g

hope this helps