Ratio, Proportion, and Percents

The blueprint of a skateboard ramp shows that its length is 11.4 inches. If the scale on the blueprint is 1 inch = 6 feet, what is the length of the actual skateboard ramp?

• 1.9 feet

• 6.84 feet

• 19 feet

• 68.4 feet

Tags

CCSS.6.RP.A.3B

Tags

CCSS.HSG.SRT.A.2

Which proportion could be used to answer this question:  What number is 15% of 450?

What percent of 12 is 15?

• 80%

• 125%

• 20%

• 120%

For finding out ratio of two quantities, both should be expressed in the _​ (a)   Unit

• Same

• Different

• Equal

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Write how to find the proportion of

2:8 :: 25:625

(Do not give space first right the means than the extremes.)

Mathematical Equivalence

ON

Tags

CCSS.7.RP.A.3

Summer Sports is having a sale. A volleyball has an original price of $59. It is on sale for 65% off the original price. All of the following could be used to find the selling price of the volleyball EXCEPT-

• Multiply .35 by 59

• Multiply .65 by 59 and subtract the result from 59.

Tags

CCSS.6.RP.A.3C

All of these equations are true EXCEPT--

• 50% = 1/2

• 5% = 0.5

• 25% = 1/4

• 10% = .1

Write a proportion and solve:
Eight is what percent of 64?

• 12.5%

• 8%

• 800%

Write a proportion and solve:
Six is what percent of 5?

• 120%

• 83.3%

• 132%

• 64%