SOLUTION: margaret is twice as old as jenny, and sarah is twice as old as margaret. Their combined ages total 133 years. How old is each person? in equation form

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Question 60340This question is from textbook algebra
: margaret is twice as old as jenny, and sarah is twice as old as margaret. Their combined ages total 133 years. How old is each person? in equation formThis question is from textbook algebra

Answer by funmath(2873) (Show Source):
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margaret is twice as old as jenny, and sarah is twice as old as margaret. Their combined ages total 133 years. How old is each person? in equation form
Let Jenny's age be: x
Then Margaret's age is: 2x
Then Sarah's age is: 2(2x)=4x
They add up to be: 133
:
x+2x+4x=133
7x=133
7x/7=133/7
x=19
:
Jenny's age: x=19
Margaret's age: 2x=2(19)=38
Sarah's age:4x=4(19)=76
:
Happy Calculating!!!