Nick is now seven times as old as Harry. In 6 years, Nick will be five times as old as Harry. How old will Harry be in 6 years?
12
16
18
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OpenStudy (anonymous):
18
OpenStudy (apoorvk):
Let Nick's present age be 'x', and Harry's be 'y'
so, since 'x' is seven times that of 'y',
x=7y ....{i}
After 6 years, Nick's age = x+6 = 7y+6 ...{from 'i'}
Harry's age after 6 years = y + 6
now, it's been stated that after 6 years, Nick shall be 5 times as old as Harry.
So,
(7y+6) = 5(y+6)
Solve this^!
OpenStudy (anonymous):
really!!
OpenStudy (lgbasallote):
Yes!!!
OpenStudy (anonymous):
combine like terms first?
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OpenStudy (lgbasallote):
Distribute 5 first
OpenStudy (apoorvk):
yes yes!
OpenStudy (apoorvk):
and distribute '5' first, as Monsieur Basallote says!
OpenStudy (lgbasallote):
Combine second
OpenStudy (anonymous):
ok
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OpenStudy (anonymous):
multiply 5 by 6 to right
OpenStudy (anonymous):
7y+6=5y+30
2y =24
y=12
OpenStudy (apoorvk):
yes multiply 5 by 6 to right and add a y multiplied by 5 to it as well.
OpenStudy (anonymous):
well this is now pointless because i already have the answer
OpenStudy (apoorvk):
Hmm maybe. But did you understand it? Or rather you feel you could have done that yourself?
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