Staar Math 7th grade 2018

Front

What is the best prediction of the meals wanted by 200 students based on a survey of 25 students?

Back

There are 32 more students who want a beef meal than want a chicken meal.

Front

If a recipe uses 3 cups of flour to make 48 cookies, what is the constant of proportionality relating cookies made (y) to cups of flour used (x)?

Back

16

Front

What equation represents the total cost (y) of x pounds of cheddar cheese costing $4.25 per pound?

Back

y = 4.25x

Front

What is the closest measurement in miles between two towns that are 120 kilometers apart, given that there are approximately 8 kilometers in 5 miles?

Back

75

Front

What is the sales tax in dollars on a DVD priced at $24.00 with an 8% sales tax?

Back

$1.92

Front

Define proportionality in mathematics.

Back

Proportionality is a relationship between two quantities where their ratio is constant.

Front

What is the formula for calculating sales tax?

Back

Sales Tax = Price × Sales Tax Rate.

Front

How do you convert kilometers to miles?

Back

Multiply the number of kilometers by 0.621371.

Front

What does it mean if two quantities are directly proportional?

Back

If one quantity increases, the other quantity increases at a constant rate.

Front

What is the constant of proportionality in the equation y = kx?

Back

k is the constant of proportionality.