Math Review on Ratios

If there are 5 boys and 7 girls, write the ratio of girls to boys.

• 5 to 7

• 7 to 5

• 5 to 12

• 7 to 12

Tags

TEKS.MATH.6.4C

TEKS.MATH.6.4D

To disinfect 1 quart of stream water to make it drinkable, you need to add 2 tablets of iodine. How many tablets do you need to disinfect 4 quarts?

• 4 tablets

• 5 tablets

• 6 tablets

• 8 tablets

Tags

TEKS.MATH.3.3G

What are three ways to write a ratio for the amount of dogs compared to the number of cats.

• 7:11

• 11:7

• 11 to 7

• 11/7

• 12 to 7

Tags

TEKS.MATH.6.4C

TEKS.MATH.6.4D

In an animal shelter, the ratio of cats to dogs is 3 to 5. If there are a total of 25 dogs at the shelter, how many cats do they have?

• 15

• 18

• 21

• 32

Tags

TEKS.MATH.3.3G

Diana uses 30 grams of coffee beans to make 48 fluid ounces of coffee. When guests come, she makes 96 fluid ounces of coffee. How many grams of coffee beans does Diana use when she has visitors?

Mathematical Equivalence

ON

Tags

TEKS.MATH.6.4H

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound

• $5 per pound

• $35 per pound

• 0.125 pounds per dollar

Tags

TEKS.MATH.6.4C

TEKS.MATH.6.4D

Proportions are __________________.

• a comparison of the same thing

• a linked relationship between different items

• a linked relationship between like items

• two equivalent ratios

Tags

TEKS.MATH.7.4A

If there are 3 boys to 4 girls, then how many boys would there be if there are 20 girls?

• 5 boys

• 10 boys

• 15 boys

• 20 boys

Tags

TEKS.MATH.3.3G

If there are 3 boys to 4 girls, then how many boys would there be if there are 21 students?

• 3 boys

• 6 boys

• 9 boys

• 12 boys

Tags

TEKS.MATH.3.3G

• (4, 16)

• (9, 3)

• (6, 1)

• (16, 4)

Tags

TEKS.MATH.7.4A