Standards Review : MacFarland 7th grade math 1st to 3rd term

Standards Review : MacFarland 7th grade math 1st to 3rd term

Constant of proportionality

• The values of one quantity are each multiplied by the same number to get the values for the other quantity

Constant of proportionality (expression)

• To solve with a table

  Formula: y/x

• Y divided by X

Constant of Proportionality (equation)

When we find the constant of proportionality, then we use the equation to solve for y

Formula: y = kx

Multiple Select

Eduardo is graphing a line that passes through (5, 70) and the origin. Which points that could also be on the graph of the line? (There is more than one answer)

• (4, 69)

• (7, 35)

• (2,28)

• (13,1)

• (10, 84)

Multiple Choice

Tamia is making big cake for his brother's birthday party. The table shows the tablespoons of butter to cups of milk. What is the number of tablespoons of butter to cups of milk?

• 1/3

•  $5\ \frac{1}{2}$  

•  $4\ \frac{9}{20}$  

• 3

Multiple Select

Kyree is busy building a fence around his parent’s house. The length of the fence is proportional to the hours he worked on it. Which of the following statements are true?

• The point (2.2, 33) shows Kyree worked 2.2 hours to build 33 fences.

• The point (0,0) shows Kyree worked 0 hours to build 0 fences.

• The point (1.5,20) shows Kyree worked 1.5 hours to build 20 fences.

• The point (5,75) shows Kyree worked 5 hours to build 75 fences.

• The point (3.5, 50) shows Kyree worked 3.5 hours to build 50 fences.

Multiple Choice

Mr. Hall went to get his car fixed. He spent $230 for 4 hours of labor. What is the amount of money spent per hour for labor?

• .017

• 4

• $115

• $57.50

Multiple Choice

What is the value of x?

• 4

• 40

• 48

• 2.6

Multiple Choice

What is the value of x?

• 105

• 116

• 47

• 58

Multiple Choice

Ollie does his homework for 1.25 hours per day and reads r, hours per day. Over 6 days, Ollie read and did his homework for a total of 9 hours. What equation can be used to the number of hours Ollie reads per day?

• 1.25 (r + 6) = 9

• 6 ( 1.25 + r) = 9

• 6r + 1.25 = 9

• r + 1.25 (6) = 9