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11-12-2020
Mathematics

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If Sarah has 30 bills in her wallet worth $240, all fives and tens, how many of each bill does she have? help

Respuesta :

11-12-2020

Answer:

12 fives and 18 tens

Step-by-step explanation:

solving this we need 2 different equations

one for he total bills and one for the total money

x+y=30

that is total bills

5x+10y=240

combining both equations we can use elimination method and get

12 five dollar bills and 18 ten dollar bills

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