Using Equivalent Ratios to Find Percents

Question 1

Which equation can be used to find 75 percent of 200?

Revolt · Accepted Answer

StartFraction 75 times 2 Over 100 times 2 EndFraction = StartFraction 150 Over 200 EndFraction

Question 2

Kato must write 60 percent of a 20-page report by tomorrow. Kato wants to determine the number of pages that he needs to write by tomorrow. Kato’s work is shown below. Step 1: Write 60 percent as a ratio. Step 2: Write an equivalent ratio that has the answer in the numerator and 20 in the denominator.Step 3: Step 4: 60(5) = 180 What mistake did Kato make?

Revolt · Accepted Answer

In Step 4, Kato should have divided 60 by 5.

Question 3

Sunny’s Surf Shop sold 20 surfboards last week. This week, they will sell 320 percent as many. How many surfboards will Sunny’s sell this week?

Revolt · Accepted Answer

64

Question 4

Kendra was asked to find the number of students who planned to attend the evening symphony performance. She was told that 40 percent of the 50 students planned to attend. Kendra’s work is shown below. What mistake did Kendra make?

Revolt · Accepted Answer

Kendra should have divided by 2 instead of multiplying by 2.

Question 5

Three hundred vehicles are parked in a parking garage. Seventy percent of the vehicles are midsized cars. Which equation can be used to find the number of midsized cars in the parking garage?

Revolt · Accepted Answer

StartFraction 70 times 3 Over 100 times 3 EndFraction = StartFraction 210 Over 300 EndFraction

Question 6

Washington Middle School has the annual musical production this weekend. Of the 900 tickets sold, 45 percent are for the Friday night performance. How many tickets were sold for the Friday night performance?

Revolt · Accepted Answer

405

Question 7

The school band sold T-shirts to raise money for an upcoming trip. The band sold 400 T-shirts on Saturday. On Sunday, it will sell 30 percent of that amount. Which statements are true about the number of T-shirts that the band will sell on Sunday? Check all that apply.

Revolt · Accepted Answer

The answer will be less than 400 because 30 is less than 100.; (100)(4) = 400, so 30(4) is the number of T-shirts the band will sell on Sunday.; The band will sell 120 T-shirts on Sunday.

Question 8

The science center has 200 people in attendance on Monday. The center expects Saturday’s attendance to be 140 percent of Monday’s attendance. Natasha is trying to figure out how many people will be in attendance. Her work is shown below. 70 people will be in attendance.What mistake did Natasha make?

Revolt · Accepted Answer

Natasha should have multiplied 140 by 2.

Question 9

The carnival fundraiser at Westville Elementary School raised $300 on Friday. On Saturday, the carnival will raise 480 percent of that amount. Which statements are true about the amount of money that the carnival will raise on Saturday? Check all that apply.

Revolt · Accepted Answer

The answer will be greater than $300 because 480 is greater than 100.; (100)(3) = 300, so 480(3) is the amount of money that the carnival will raise on Saturday.; The carnival raised $1,440 on Saturday.

Question 10

There are 50 animals in a shelter. Sixty percent of the animals are dogs. Which equation can be used to find the number of dogs in the shelter?

Revolt · Accepted Answer

StartFraction 60 divided by 2 Over 100 divided by 2 EndFraction = StartFraction 30 Over 50 EndFraction

Using Equivalent Ratios to Find Percents Answers

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