The sum of the two numbers is 128. The first number is 18 more than the second number. What are the two numbers - mathselab.com

The sum of the two numbers is 128. The first number is 18 more than the second number. What are the two numbers?

Question


The sum of the two numbers is 128. The first number is 18 more than the second number. What are the two numbers?


A. 37, 55
B. 55, 37
C. 55, 73
D. 73, 55


Answer: D. 73, 55


Solution:

The 1st one is x + 18

The 2nd one is x

According to condition,

x + 18 + x = 128

=> 2x + 18 – 18 = 128 – 18

=> 2x = 110

=> 2x/2 = 110/2

=> x = 55

The 1st one is 55 + 18 = 73.

The 1st one is 73, and the 2nd one is 55.



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