SOLUTION: I need help with the following word problem from a 5th grade textbook:
The product of two decimal numbers is 8.12. The difference of the two numbers is 0.1. What are the two num
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The product of two decimal numbers is 8.12. The difference of the two numbers is 0.1. What are the two num
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Question 110192: I need help with the following word problem from a 5th grade textbook:
The product of two decimal numbers is 8.12. The difference of the two numbers is 0.1. What are the two numbers?
Thank you,
You can put this solution on YOUR website! X*Y=8.12
X-Y=.1 OR X=Y+.1
NOW SUBSTITUTE (Y+.1) FOR X & SOLVE FOR Y IN THE FIRST EQUATION
(Y+.1)Y=8.12
Y^2-.1Y-8.12=0
(Y-2.9)(Y+2.8)=0
Y-2.9-0
Y=2.9 ANSWER.
Y+2.8=0
Y=-2.8 ANSWER.
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