kphillips770470 kphillips770470

30-10-2018
Mathematics

contestada

Tom is 4 more than twice Andrews age. Sara is 8 less than 5 times Andrews age. If Tom and Sara are twins, how old is Andrew?

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aidenbelt970 aidenbelt970

30-10-2018

Answer:

Andrew is 4 years old

Step-by-step explanation:

t=s

t=2a+4

s=5a-8

since tom and sara are twins you can set the equations equal to eachother.

2a+4=5a-8

add 8 to each side

2a+12=5a

subtract 2a

12=3a

divide by 3

4=a

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