Pretest Percentages-Rate-Ratio

Mr. Wright has 7 boys and 9 girls. What is the ratio of girls to boys?

• 7 to 9

• 9 to 7

Which rate is equivalent to $9 per hour?

• $27 in 3 hours
• $28 in 4 hours
• $33 in 3 hours

What is a Ratio?

• Is a comparison of two quantities 
• A rate with a denominator of one
• It is when the only factor the numerator and denominator share is a one 
• Two decimals that can be multiplied

What mathematical operation do ratios involve?

• addition
• subtraction
• multiplication
• division

9 minutes to 5 miles

• Ratio
• Rate
• Unit Rate

There are 4 triangles, 12 squares, and 6 circles.  What is the ratio of triangles to squares? Simplify.

• 12 : 4
• 2 to 6
• 1 : 3

After 3 hours, Ernie had travelled 195 miles. If he travels at a constant speed, how far will he have travelled after 5 hours?

• 400 miles

• 325 miles

• 575 miles

• 650 miles

Which is bigger:
25% of 200 
OR
20 % of 250

• 25% of 200
• 20% of 250
• They are the same

The ratio of 6th graders to 7th graders at a basketball game is 4:1.  If there are eight 7th graders, how many 6th graders are there?

• 28
• 16
• 8
• 32

^{What is the ratio of total shapes to circles?}

• 3 : 4
• 4 : 3
• 7 : 3
• 3 : 7