SOLUTION: 1. There are two numbers whose sum is 72. One number is twice the other. What are the numbers?
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Question 1162187: 1. There are two numbers whose sum is 72. One number is twice the other. What are the numbers?
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
let's two numbers be and
if their sum is , we have
.........eq.1
if one number is twice the other, we have
.....eq.2
substitute from eq.2 in eq.1
.........eq.1
go to eq.2
.....eq.2, substitute
so, the numbers are and
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