Expressions and Percents

A jewelry supply shop buys silver chains from a manufacturer for c dollars each, and then sells the chains at a 40% markup. Write an expression for the retail price of a silver chain.

• .6c
• .4c
• 1.4c
• $40

Tags

CCSS.HSA-SSE.A.1A

To find a discount of 30% off of a price of P, which expression should you use to find the final price? 

• 1.30P
• 0.30P
• 0.70P
• 1.70P

Tags

CCSS.6.EE.B.6

To find a discount of 15% off of a price of B, which expression should you use to find the final price?

• B - 0.85
• 0.85 + B
• 0.15B
• 0.85B

Tags

CCSS.6.EE.B.6

The expression 0.70x calculates what change to x?

• 70% increase
• 70% decrease
• 30% increase
• 30% decrease

The expression x⋅0.90 calculates what change to x?

• 10% increase
• 10% decrease
• 90% decrease
• 90% increase

The expression 1.80x calculates what change to the value of x?

• 20% increase
• 80% decrease
• 20% decrease
• 80% increase

Tags

CCSS.6.RP.A.3C

The expression 1.05x calculates what change to the value of x?

• 50% increase
• 5% increase
• 95% increase
• 95% decrease

A coat is on sale for 35% off. The regular price is p. Which expression represents the sale price of the coat?

• p - 0.35

• p - 0.35p

• p - 0.65

• 35p

Tags

CCSS.6.EE.B.6

a tutor earns d dollars per hour. He will be increasing his hourly wage by 10% starting next month. By what number should his clients multiply the previous wages they paid in order to calculate the new wage?

• 0.1

• 0.9

• 1.1

• 1.9

Tags

CCSS.7.EE.B.3

A jeweler purchases a necklace for $80. She will increase the cost by 50% to sell in her store. What will the jeweler charge for the necklace to her customers?

• $40

• $120

• $150

• $100

Tags

CCSS.6.RP.A.3C