7th Grade Review Test for SCReady

Determine the constant of proportionality.

• r = 3

• r = 1/3

• r = 5

A health food store has a sale: 2 fruit smoothies for $5. How much would 6 smoothies cost?

• $10

• $12

• $15

Answer explanation

To find the cost of 6 smoothies, we can calculate 3 sets of 2 smoothies for $5 each, totaling $15.

What is 45% of $432?

• $213

• $194.40

• $201.45

Answer explanation

To find 45% of $432, multiply $432 by 0.45. This gives $194.40, which is the correct answer choice.

Tracy spent 1/2 of an hour playing on her phone and used up 1/9 of the battery. How long would shave to play on her phone to use the entire battery?

• 3 hours

• 6 hours

• 4.5 hours

Answer explanation

Tracy used 1/9 of the battery in 1/2 hour, so to use the entire battery, she would need to play for 4.5 hours (1/9 * 9 = 1 battery)

18 is 25% of what number?

• 72

• 54

• 36

Answer explanation

To find the number, divide 18 by 0.25 (25%). 18 ÷ 0.25 = 72. Therefore, 18 is 25% of 72.

What is the total price of a $7.50 meal with 6.5% sales tax?

• $8.25

• $7.50

• $7.99

Answer explanation

The total price of a $7.50 meal with 6.5% sales tax is $7.99. Adding the tax to the meal cost gives $7.99.

• 1/8

• 1/6

• 1/2

Answer explanation

To simplify the expression, first divide 1 by 4 to get 1/4, then divide that by 2 to get 1/8. Therefore, the correct answer is 1/8.

A cheetah can run 60 miles per hour. How many feet per hour is this?

• 316800 feet per hour

• 72000 feet per hour

• 52800 feet per hour

Answer explanation

To convert miles per hour to feet per hour, multiply by 5280 (the number of feet in a mile). Therefore, 60 mph * 5280 = 316800 feet per hour.

What is the price of a $199 phone with a 15% discount?

• $179.85

• $195.00

• $169.15

Answer explanation

To find the price after a 15% discount, you subtract 15% of $199 from $199. 15% of $199 is $29.85, so $199 - $29.85 = $169.15.

• 4

• 8

• 6

Answer explanation

To solve for x, cross multiply to get x = 13 * 18 / 39 = 6. Therefore, the correct answer is 6.