Topic 5 - Understand and Use Ratio and Rate

There are 7 ushers and 11 technicians helping at the Harper Middle School fall play. What is the ratio of technicians to all helpers? (Write the ratio as a fraction)

Mathematical Equivalence

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Anya’s team won 5 out of every 7 games this season. If the team played 28 games this season, how many games did they win?

Mathematical Equivalence

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A factory needs to produce 1,800 jars of peanut butter on a certain day. They start production at 8:30 A.M. By 10:30 A.M., they have produced 600 jars of peanut butter. At what time will they complete the total number of jars that they need to produce?

• 12:30 P.M.

• 1:30 P.M.

• 2:30 P.M.

• 3:30 P.M.

Complete the boxes to write three ratios that are equivalent to 4 : 12.

20:​ (a)  

​ (b)   :36

​ (c)   :6

• 60
• 12
• 2
• 8
• 24

Select all the correct statements that tell if the operation will give an equivalent ratio for 8/20. (Hint: There are 3 answers)

• Add 2 to each term.

• Subtract 8 from each term.

• Multiply each term by 2.

• Divide each term by 4.

• Multiply each term by 1/8

At an amusement park, 25 people ride the race cars every 30 minutes, and 20 people ride the spinning swings every 20 minutes. Which ride will have more riders each hour? How many more?

The ​ (a)   will have ​ (b)   more riders each hour.

• spinning swings
• 10
• race cars 
• 5

The ratio of boys to girls in Ella’s grade is 3 to 4. The ratio of boys to girls in Minh’s grade is 4 to 5. Each grade has a total of 20 girls. How many boys are in each grade?

Ella's grade has ​ (a)   boys, and Minh's grade has ​ (b)   boys.

• 15
• 16
• 14

Make a graph that illustrates the equivalentratios shown in the table.

If each department shown has the same number of black socks, which department stocks more white socks?

• The women's department

• The men's department

A hair salon uses 4 bottles of shampoo for every 3 bottles of conditioner. Use the graph to find the number of bottles of conditioner that are used when 16 bottles of shampoo are used.

Mathematical Equivalence

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