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The product of the ages of Dora and Phil is 243. Phil is 3 times as old as Dora. How old is Phil?
3 Answers
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- ?Lv 77 months ago
The product of the ages of Dora and Phil is 243.
Phil is 3 times as old as Dora.
Phil is 27 years old.
- sepiaLv 77 months ago
The product of the ages of Dora and Phil is 243.
Phil is 3 times as old as Dora.
How old is Phil?
DP = 243
3D^2 = 243
D^2 = 81
D = 9
Phil is 27 years old.
- billrussell42Lv 78 months ago
D•P = 243
P = 3D
substitute
D(3D) = 243
3D² = 243
D² = 81
D = √81 = 9
P = 3D = 27
check
27•9 = 243
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