7th Grade Math Unit 3 Lesson 4 Practice

What is the expression for a 20% increase in the price of a smartphone that costs x dollars?

Select BOTH correct answers

• 1.2x

• 0.8x

• x + .20x

• x + 20

Tags

CCSS.6.RP.A.3C

What is the expression for a 30% increase in the price of a smartphone that costs x dollars?

Select BOTH correct answers

• 1.3x

• 0.7x

• x + .30x

• x + 30

Tags

CCSS.6.NS.B.3

What is the expression for a 30% decrease in the price of a shirt that costs x dollars?

Select BOTH correct answers

• 1.3x

• 0.7x

• x - .30x

• x - .7x

Tags

CCSS.6.RP.A.3C

What is the expression for a 15% decrease in the price of a tablet that costs x dollars?

Select BOTH correct answers

• 1.15x

• 0.85x

• x - .15x

• x - .85x

Tags

CCSS.6.RP.A.3C

What is the expression for a 6.5% increase in the price of a pair of shoes that costs x dollars?

Select BOTH correct answers

• 1.65x

• 1.065x

• x + .65x

• x + .065x

Tags

CCSS.7.EE.A.2

CCSS.7.EE.B.4

CCSS.7.RP.A.2

CCSS.7.RP.A.3

What is the expression for a 6.5% decrease in the price of a car that costs x dollars?

Select BOTH correct answers

• .35x

• 0.935x

• x - .65x

• x - .065x

Tags

CCSS.6.RP.A.3C

Calculate the final price after a 25% discount on a $350 camera.

• $262.50

• $300

• $275

• $325

Tags

CCSS.6.RP.A.3C

A gaming console priced at $299 is on sale for 15% off. What is the sale price?

• $254.15

• $269.15

• $279.15

• $289.15

Tags

CCSS.6.RP.A.3C

Find the discounted price of a $1,200 laptop after a 20% markdown.

• $960

• $1,000

• $1,020

• $1,100

Tags

CCSS.6.RP.A.3C

Calculate the price of a $500 sofa after a 25% discount.

• $375

• $400

• $425

• $450

Tags

CCSS.6.RP.A.3C