Open Up Resources 7th grade Unit 4

Clare has a recipe for yellow cake. She uses 9 1/3 cups of flour to make 4 cakes. Noah will follow the same recipe. He will make "c" cakes using "f" cups of flour.

Which of these equations represent the relationship between "c" and "f" ?

• c = 16/3(f)

• c = 3/16(f)

• c = 3/7 (f)

• c = 7/3 (f)

A graduated cylinder actually contains 7.5 milliliters of water. When Han measures the volume of the water inside the graduated cylinder, his measurement is 7 milliliters. Which of these is closest to the percent error for Han’s measurement?

• 107.1%

• 93.3%

• 7.1%

• 6.7%

It takes Diego of an 1/24 hour to complete a lap on a circular bike track. The track is 1/3 mile long. What is Diego’s bike speed?

• 1/8 mile per hour

• 1/8 hours per mile

• 8 miles per hour

• 8 hours per mile

A practice field is 250 feet long. The game field is 40% longer than the practice field. How long is the game field?

Noah has a coupon for 30% off at his favorite clothing store.

He uses it to buy a hoodie and a pair of jeans.

Noah paid $28 for the jeans after using the coupon.

What is the regular price of the jeans?

• $20

• $40

• $10

• $30

Noah has a coupon for 30% off at his favorite clothing store.

He uses it to buy a hoodie and a pair of jeans.

The regular price of a hoodie is $27.

What did Noah pay for the hoodie?

• $19.60

• $57.00

• $24.00

• $18.90

Noah has a coupon for 30% off at his favorite clothing store.

He uses it to buy a hoodie and a pair of jeans.

If the regular price of an item is "x" dollars, what is the discount price in dollars?

• 0.7x

• 70%x

• x - 0.3x

• x - 30%x

Kiran’s mother gets a restaurant bill for $25. She has a coupon for 15% off. After the discount is applied, she adds 20% as a tip.

What is the total after the discount and tip? Explain or show your reasoning.

• $3.75

• $25.50

• $21.25

• $4.25

Kiran’s mother gets a restaurant bill for $25. She has a coupon for 15% off.

What is the total after the discount?

• $4.25

• $22.25

• $21.25

• $20.25

Jada’s sister earns a commission. She makes 3.5% of the amount she sells. Last week, she sold $7,000 worth of furniture. How much was her commission?

• $2.45

• $3.50

• $350

• $245