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3 years ago

13

zane and shelby's grandfather is 5 times as old as the total of their ages. If their grandfather is 70 and Shelby is 6, how many

years old is Zane?

1 answer:

wel3 years ago

7 0

G=5(z+s)
70=5(z+6)
70=5z+30
40=5z
z=8

Zane is 8

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