Proportion Word Problems Math 8

The ratio of cups of sugar to cups of flour needed to bake cookies is 1:5. If Myesha uses 25 cups of flour, how much sugar is needed?

• 125 cups
• 5 cups
• 15 cups
• 10 cups

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

It takes Emily an hour to run 6 laps around the football field. How many minutes will it take her to run 10 laps?

• 36
• 60
• 100
• 6

David wants six ounces of perfume. If four ounces of perfume costs $20.96, how much will David spend? 

• $31.44
• $13.97
• $5.99
• $67.98

A scale model of a whale is being built. The actual length of the whale is 65 feet. The scale of the model is 2 in : 3 ft. What will be the length of the model?

• 97.5 inches
• 30.6 inches
• 41.56 inches
• 43.33 inches

Tags

CCSS.7.G.A.1

Burger reads 18 pages in 20 minutes, How many pages can she read in 2 hours?

• 108 pages
• 133 pages
• 134 pages
• 109 pages

The human brain weighs about 16 oz. for each 100 lb. of body weight. What is the approximate brain weight of a person weighing 85 lb. to the nearest ounce?

• 18.8 oz. 
• 15.5 oz.
• 13.6 oz.
• 10.7 oz.

The amount of paper recycled is directly proportional to the number of trees that recycling saves. If recycling 2,000 pounds of paper saves 17 trees, how many trees are saved when 5,000 pounds of paper are recycled?

• 54 trees
• 42.5 trees
• 80.6 trees
• 6.8 trees

Students are building a model of a volcano. For a volcano that is about 8,000 ft. tall, the model would be 18 in. tall. If the students' model is 12 in. tall, which is closest to the height of the real volcano? 

• about 76.8 ft. tall
• about 37 ft. tall
• about 5,233 ft. tall
• about 5,333 ft. tall

The ratio to boys and girls in Ms. Brown and Ms. Hobson's class is 12:8. If there are 4 girls, how many boys are there?

• 6 boys
• 18 boys
• 3 boys
• 2 boys

The ratio of cups to teaspoons is 1:2. If there are 6 teaspoons, how many cups are there?

• 12 cups

• 6 cups

• 3 cups

• 18 cups