Question

Jeremy's grandfather is four times as old as he is. If you add their ages together, you will get ninety. How old is Jeremy's grandfather?

Answer 1

Answer:

let Jeremy's age be x

if Jeremy's grandfather is four times as old as he is,grandfather's age is 4x

if the sum of their ages is 90, we have

x%2B4x=90

5x=90

x=90%2F5

x=18->Jeremy's age

Jeremy's grandfather will be 4x=4%2A18=72

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

let jeremy's age be x

if Jeremy 's grandfather is four time old as he is, grandfather's age is 4x

if sum of their age is 90 , we have

x + 4x = 90

5x = 90

x = 90 /5

x = 18 jeremy's age

jeremy's grandfather will be 4× 18 = 72 .

Answer is 72.

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