Justin used 42 centimeters of tape to wrap 14 presents. How many presents did Justin wrap if
he used 45 centimeters of tape? Solve using unit rates.

__ presents

Answer:

-3/2

Step-by-step explanation:

The slope of a line is its gradient. The equation shown here is y=mx+c. m is the gradient, therefore the gradient is 2/3. To find the perpendicular gradient you flip the sign (+ turns to -, - turns to +) and you switch numerator with the denominator.

Answer:

The data in shelter A shows more spread than the data in shelter B

-And-

The data in shelter A range from about 17 to 28, while the data in shelter B range from about 16 to 20

For the range/span you look at where the actual box lies and for the spread use the whisker span.

Answer: 3/2

Step-by-step explanation:

Hi, to answer this question we have to write the next expressions::  

Height 1= 8 +12 y

Height 2 =5 +14y

Where y = number of years

Since both heights must be the same

Height 1 = height 2

8+12y = 5+14y

solving for y:

8-5 =14y-12y

3 = 2y

3/2 =y

y = 3/2 years

Feel free to ask for more if needed or if you did not understand something.

8 + 12y = 5 + 14y

12y + 8 = 14y + 5

12y + 8 - 8 = 14y + 5 - 8

12y = 14y - 3

12y - 14y = 14y - 3 - 14y

-2y = -3

(-2y)/-2 = -3/-2

y = 3/2

Answer: 26

We would add the total responses recorded in the Girls row, which is equal to 32. We would then subtract it from the total of that row, 38. 38 - 32 is equal to 6. 6 girls chose their answer as English. We can check our work by adding the responses to see if they added up to the total. Now we move to the boys. The Maths column is 5. The boys row is missing 2 things - english and total. We can find the total by subtracting 38 from 70. This is equal to 32. Now, we can add 7 and 5 (12) and subtract from the row total (32). This is equal to 20. 20 boys chose English.

Now we add the girls and boys. 6 + 20 is equal to 26. 26 is your answer.

Hope this helps.

Answer:

-19/8

Step-by-step explanation:

take 1/4 x2 = 2/8 then add to -21/8

Brice's average biking rate in km/h is 15.48km/h.

To solve this problem, we just have to convert his speed/velocity from m/s to km/h

Data;

\(1000m = 1km\\and \\(60*60)s =1hr\\\)

This will bring 4.3m/s to

\(4.3m/s = km/hr\\\\4.3m/s= 4.3*\frac{(60*60)}{1000} \\4.3m/s = 15.48km/h\)

Brice's average biking rate in km/h is 15.48km/h.

Learn more on conversion of m/s to km/h here;

https://brainly.com/question/17808452

Answer:

ok

Step-by-step explanation:

There are different methods to solve a system of equations, but two common ones are substitution and elimination:

Substitution method:

Solve one of the equations for one of the variables in terms of the other.

For example, from the first equation: 6x - 3y = 9 --> 2x - y = 3 --> y = 2x - 3.

Substitute the expression found for the variable into the other equation.

For example, in the second equation: 4x - 5y = -18 --> 4x - 5(2x - 3) = -18.

Solve for the remaining variable.

Simplifying the equation: 4x - 10x + 15 = -18 --> -6x = -33 --> x = 33/6 = 5.5.

Substitute the value found for the variable into one of the original equations to find the other variable.

For example, using the first equation: 6x - 3y = 9 --> 6(5.5) - 3y = 9 --> 33 - 3y = 9 --> y = (33-9)/3 = 8.

Therefore, the solution for the system of equations is x = 5.5 and y = 8, or (5.5, 8).

Elimination method:

Multiply one or both equations by constants that will make the coefficients of one of the variables equal in magnitude but opposite in sign.

For example, multiplying the first equation by 5 and the second equation by 2:

30x - 15y = 45

8x - 10y = -36.

Add or subtract the resulting equations to eliminate one of the variables.

Subtracting the second equation from the first: 30x - 8x - 15y + 10y = 45 - (-36) --> 22x - 5y = 81.

Solve for the remaining variable.

Solving for y: 22x - 5y = 81 --> 5y = 22x - 81 --> y = (22/5)x - 81/5.

Substitute the value found for the variable into one of the original equations to find the other variable.

Using the first equation: 6x - 3y = 9 --> 6x - 3[(22/5)x - 81/5] = 9 --> 6x - (66/5)x + 27 = 9 --> (24/5)x = -18 --> x = -15/2.

Substitute the values found for the variables into one of the original equations to check the solution.

Using the second equation: 4x - 5y = -18 --> 4(-15/2) - 5[(22/5)(-15/2) - 81/5] = -18, which simplifies to -18 = -18, confirming the solution.

Therefore, the solution for the system of equations is x = -15/2 and y = 33/5, or (-7.5, 6.6).

Answer:

x = 5.5 y = 8

Step-by-step explanation:

Answer:

$2,500

Step-by-step explanation:

10% of 25,000 is 2,500. So the price is $2,500. Hoped this helped! Please mark me brainliest! :D

Answer:

The GREATER the line the STEEPER the PROPORTIONALITY of X you know you have a constant proportionality when your graph begins at the ORIGIN we can write the equation as y = K x. We find the constant of proportionality by DIVIDING the CONSTANT coordinate by the Y coordinate from an ordered pair.

Step-by-step explanation:

I think I'm not sure you should probably get a second opinion to be sure.

Answer:

The GREATER the line the STEEPER the PROPORTIONALITY of X you know you have a constant proportionality when your graph begins at the ORIGIN we can write the equation as y = K x. We find the constant of proportionality by DIVIDING the CONSTANT coordinate by the Y coordinate from an ordered pair.

(wat she said :))

Answer:

f and g

Step-by-step explanation:

there are four lines between each number because f ang is the closet that means that they are 1/4 apart i and j would be another example of them being 1/4 apart

Answer: The Pyramid has 2 pairs of congruent faces

Step-by-step explanation:

The explanation of congruent is the face has the same shape and same size. On rectangle pyramid, the height triangle are 2 same faces and 2 same faces, so it has 2 pairs of congruent faces

Answer:

(4,8)

Step-by-step explanation:

8 units up from the x-axis means that the height will be 8. The y-value is like the height and (4,8) is the only one with 8 as a y-value.

Answer: 36 square meters

Step-by-step explanation:

Answer:

36 square meters

Step-by-step explanation:

1 square 3x3 = 9

if you have two triangles that are the same you can pretend its 1 rectangle

4.5 x 3 = 13.5

but there are 4 triangles so

13.5 x 2 = 27

so the answer is

9 + 27 = 36

Answer:

white 1: black 3

white 2: black 1

white 3: black 2

Step-by-step explanation:

white 1: the denominator for the x values so it becomes 1-2=-1 which becomes -1/3x +1/4

White 2: same case as the first so we add 1+2=3 3/3=1 so that makes it x+1/4

white 3: there is only one x values that has 4 as the denominator therefore that makes the answer 3/4x+1/3

Step-by-step explanation:

G² = m - 5 ÷ 2

2G² = m - 5

m = 2G² + 5

Answer:

(1, -3) can be removed so that the resulting graph represents a function. A relation from a set X to a set Y is called a function if each element of X is related to exactly one element in Y

Step-by-step explanation:

Answer:

Step-by-step explanation:

Well the answer is 40 cause you count by 20 so if you in 20 t o times then you would get 40 percent

Answer:

24.

Step-by-step explanation:

1 + 1 + 1 = 3

9 + 9 = 18

3 + 18 = 21 + 3 = 24

I hope this helps, have a nice day.

Answer:

The answer is 24

Step-by-step explanation:

1+1+1=3

9+9+3=21

21+3=24

Answer:

Total Area = 2 × 6 + 4 × 6 = 72 + 18 = 90 in^2

Step-by-step explanation:

We are given both the total area (36) and total perimeter of the sides (90).

72 + _ = 90

90 - 72 = 18

2 × _ + 4 × _ = 36

2 × 6 + 4 × 6

12 + 24 = 36

Answer:

The answer is 51984

Step-by-step explanation:

40-2(2+10)=

38(2+10)=

96+360=

456=

456/2=

228=228^=

51,984

Answer:

Well even though you dont need it now the answer is v = 42 squared

Step-by-step explanation:

I used g00g1e like a normal person would

well, Yasin is correct, the exterior angles are all 36° each, however "g" is including more than just that, Check the picture below.

Answer: 36 is wrong

Step-by-step explanation: 360 - 36 = 324  degrees

1/8 + 1/8 +1/8 +1/8 is the same as 1/2. Each 1/8 represents 1 batch. (1/8*4=4/8 which is equivalent to 1/2)

Step-by-step explanation:

c. 10 1/20 is your answer

Step-by-step explanation:

YZ = 11.9x16.5

Answer= 196.35

XZ= -4x16.5

Answer= -66

Answer:

4.89897948557

if you rounded it, it would be 4.90, or 4.9

Step-by-step explanation:

First, I solved 3.14 x 11.7. This gave me 36.738.

Next, I did 885 divided by 36.738. This gave me a long list of numbers, but the whole was 24. (24.0894986117916…)

I rounded that number to 24.

Now, I found the square root of 24. Square root is basically a number that is multiplied by itself to get a number. For example, the square root of 9 is 3, because three times three is nine.

Anyways, the square root of 24 came out to be 4.89897948557. So, I rounded and got 4.9.

Hope this helped you! Sorry if I’m wrong, I tried my best to answer it correctly, I’m in middle school too… so I could be wrong!!

Answer:

r=4.89897948557

Step-by-step explanation:

Answer:

d-2x

Step-by-step explanation:

d is the amount of dollars she had, 2x is the amount of money she used to buy ice creams.

We can write an equation to resemble the problem.

We can write "2x" since she bought 2 ice creams and the price of each is unknown.

We can subtract that by "d" to find how much money she has left.

Put everything together.

2x - d

Best of Luck!