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0 votes
A.

Three of the cars in the race weighed less than 600
pounds. These cars made up 10% of all the cars.
How many cars were there in the race?

2 Answers

7 votes

Answer:

Angela, a proportion is two equal ratios, kinda like 3/4 = 6/8.

If we call the number of cars c, then our proportion is 3/10 = c/100.

Cross multiplying, we get 10c = 300.

Dividing both sides by 10, c = 30.

User Jaya Mayu
by
8.3k points
6 votes

Answer:

  • 30 cars

Explanation:

3 cars made up 10% of all the cars x:

  • 3 ⇒ 10%
  • x ⇒ 100%
  • x = 3*100/10 = 30
User Sahaj Rana
by
8.7k points

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