7th Grade Math STAAR Review

Which equation represents a constant rate of change of 25? (7.4A)

Hint: y =kx

• x + 25 = y

• 25x = y

• x - 25 = y

• 5x = y

Tags

CCSS.7.EE.B.4

CCSS.7.RP.A.2

CCSS.7.RP.A.3

What constant rate of change is shown by the graph? (7.4A)                hint:  $\frac{rise}{run}$  

• 2

• 3

• 0.5

• 1

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.B.4

CCSS.8.SP.A.3

Which graph best represents the constant rate of change of 2? (7.4A)

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• 

Tags

CCSS.8.EE.B.5

CCSS.8.F.A.3

CCSS.8.F.B.4

Which table represents a situation with a rate of change of $\frac{3}{2}$  ? (7.4A)
Hint:  $\frac{\Delta y}{\Delta x}$   

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• 
• 
• 

Tags

CCSS.8.EE.B.5

CCSS.8.F.A.2

CCSS.8.F.B.4

CCSS.8.SP.A.3

Last week a certain brand of hand lotion cost $3.00 for a 16-ounce bottle. This week the hand lotion ison sale for $2.40 for a 16-ounce bottle. Which is the percent decrease in the price of the hand lotion? (7.4D)

Hint:   $\frac{change}{original}=\ \frac{\%}{100}$  

• 16%

• 13%

• 20%

• 25%

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Yvette uses 6 grams of tea leaves to make 24 fluid ounces of tea. Last week she made 288 fluid ounces of tea. How many grams of tea leaves did Yvette use to make tea last week? (7.4D)

Hint: Words Told Find

• 0.5 g

• 1,152 g

• 72 g

• 2 g

Tags

CCSS.7.EE.B.3

CCSS.7.RP.A.2

CCSS.7.RP.A.3

The ratio of boys to girls in Ms. Cunningham's class is 2 to 3. There are 18 girls in the class. What is the total number of students in Ms. Cunningham's class? (7.4D)

Hint: Words Told Find

• 12

• 30

• 45

• 27

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

In six months, the membership at a fitness center went from 3,500 to 4,200. What was the percent of increase in the membership? (7.4D)

Hint:    $\frac{change}{original}=\ \frac{\%}{100}$  

• 10%

• 15%

• 20%

•  $16\ \frac{2}{3}$  %

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

The total cost of a vase of spring flowers at a flower shop depends on the number of flowers ordered.

The vase costs $3, and each flower costs $2.50. Which equation can be used to find c, the total cost of

the vase with f flowers? (7.7A)

Hint: y = mx + b

• c = 3 + 2.50 + f

• c = 3 + 2.50f

• c = 3f + 2.50

• c = (3+2.50)f

Tags

CCSS.7.EE.A.1

CCSS.7.EE.A.2

CCSS.7.EE.B.4

Which equation can be used to represent the relationship between x and y for the points shown above? (7.7A)

Hint:  $\frac{rise}{run}$  & y = mx+ b

• y = 2x + 4

• y = x + 4

• y = $\frac{1}{2}$ x + 4

• y = 3x + 4

Tags

CCSS.7.EE.B.4