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maxonik [38]
2 years ago
15

A kind teacher gives you 20 cents for every question you get right, but you have to pay the

Mathematics
1 answer:
sergey [27]2 years ago
7 0

Answer:

Let n be the number of questions you got right. Then

30-n equals the number of questions you got wrong.

So:

A) 20n-10(30-n)=180

30n-300=180

30n=480

n=16

30-n=14

B)You got <u>16</u> questions right and <u>14</u> questions wrong.

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