SOLUTION: Dick is now seven times as old as harry. In six years Dick will be five times as old as Harry. How old will Harry be in five years?
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-> SOLUTION: Dick is now seven times as old as harry. In six years Dick will be five times as old as Harry. How old will Harry be in five years?
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You can put this solution on YOUR website! Let d = Dick's present age
Let h = Harry's present age
;
Write an equation for each statement:
:
"Dick is now seven times as old as harry."
d = 7h
:
" In six years Dick will be five times as old as Harry."
d + 6 = 5(h + 6)
:
d + 6 = 5h + 30
;
d = 5h + 30 - 6
:
d = 5h + 24
:
How old will Harry be in five years?
:
Substitute 7h for d in the above equation
7h = 5h + 24
7h - 5h = 24
2h = 24
h =
h = 12 is Harry's present
then
12 + 5 = 17 yrs is Harry's age in 5 yrs