SOLUTION: I need homework help I think I have most of the questions right yet I want to be sure 2. Are the 2 pairs of numbers proportional 8,9 and 80, 90 I would say yes they are proporti

Question 723203: I need homework help I think I have most of the questions right yet I want to be sure
2. Are the 2 pairs of numbers proportional 8,9 and 80, 90 I would say yes they are proportional because in solving the problem it was 0=0
Am I right?
Cross multiply:
8 * 90 = 9 * 80
Simplifying
8 * 90 = 9 * 80
Multiply 8 * 90
720 = 9 * 80
Multiply 9 * 80
720 = 720
Add '-720' to each side of the equation.
720 + -720 = 720 + -720
Combine like terms: 720 + -720 = 0
0 = 720 + -720
Combine like terms: 720 + -720 = 0
0 = 0
Solving
0 = 0

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Are the 2 pairs of numbers proportional 8,9 and 80, 90
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Check the proportion:
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(8/9) R (80/90)
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Cross-multiply:
720 R 720
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R is "equals"
----
Cheers,
Stan H.

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