Using word ratios

to solve proportions…

The cost of three apples is $1.47. What is the cost of 7 apples?

A photocopy machine copied 60 pages in 1.5 minutes. At this rate, how long will the machine take to copy 90 pages?

There are 2 girls for every 7 boys in the school choir. If there are 108 members altogether, how many are boys?

The model of a truck is 4.5 inches wide. The scale of the model is 3 in : 5 ft. What is the actual width of the truck?

Five vests can be made from 2½ yards of fabric. How many vests can be made from 8 yards of fabric?

Sam can type 280 words in 8 minutes. If Sam continues to type at the same rate, which equation can be used to find n, the number of words he can type in half an hour?

Homework: Worksheet #1-16

1. In a bag, there are 450 jelly beans. If Shelly draws 30 beans and 12 of them are root beer flavored, predict how many jelly beans in the bag will be root beer flavored.

2. Sam can type 280 words in 8 minutes. If Sam continues to type at the same rate, which equation can be used to find n, the number of words he can type in half an hour?

3. Brianna delivers newspapers. She can deliver 60 papers in 45 minutes. Which of these represents an equivalent rate of delivering newspapers?

A) 30 papers in ½ hourB) 75 papers in 1 hourC) 120 papers in 1 ½ hoursD) 100 papers in 1 hour

4. At Austin Shoe Factory, 5 pairs of shoes, on average, can be placed in shoe boxes every 3 minutes. At this rate, how many pairs of shoes can be placed in shoe boxes during 8 hours of work?

5. Mike made a scale drawing of his room. The actual room has a width of 16 feet and a length of 24 feet. His drawing has a length of 3 inches. What is the width, in inches, of the scale drawing of the room?

6. To make a certain shade of orange paint, Travis must add 20 ounces of yellow paint to every 50 ounces of red paint. If he uses 200 ounces of red paint, which proportion can he use to find x, the number of ounces of yellow paint he should add to get the shade of orange he wants?

7. An electronic device counted 3,962 vehicles passing through an intersection during a 7-hour period. If the number of vehicles through this intersection per hour remains the same, which proportion can be used to find x, the number of vehicles that would be counted by the device during a 9-hour period?

8. Last week Mary drove her can 440 miles and used 20 gallons of gasoline. At the same rate, how many miles could she drive her car using 40 gallons of gasoline?

9. The cost of three apples is $1.47. What is the cost of 7 apples?

10. A photocopy machine copied 60 pages in 1.5 minutes. At this rate, how long will the machine take to copy 90 pages?

11. Maria spent 3 hours writing addresses for 50 party invitations. At this rate, how long will it take Maria to write addresses for 90 invitations?

12. It costs $135 to rent a limousine for 3 hours. At this rate, how much will it cost to rent a limousine for 5 hours?

13. There are 2 girls for every 7 boys in school choir. If there are 108 members altogether, how many are boys?

14. The model of a truck is 4.5 inches wide. The scale of the model to the actual truck is 3 in:5 ft. What is the actual width of the truck?

15. A fruit punch recipe calls for 3 pints of orange juice to 4 pints of cranberry juice. How many pints of cranberry juice are needed to create a fruit punch that has 21 pints total?

16. Five vests can be made from 2 ½ yards of fabric. How many vests can be made from 8 yards of fabric?