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grigory [225]
3 years ago
12

A.

Mathematics
2 answers:
GalinKa [24]3 years ago
5 0

Answer:

  • 30 cars

Step-by-step explanation:

<u>3 cars made up 10% of all the cars x:</u>

  • 3 ⇒ 10%
  • x ⇒ 100%
  • x = 3*100/10 = 30
Varvara68 [4.7K]3 years ago
3 0

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.

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