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?

Respuesta :

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.

Answer:

  • 30 cars

Step-by-step explanation:

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

  • 3 ⇒ 10%
  • x ⇒ 100%
  • x = 3*100/10 = 30