19-09-2017
Mathematics

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Anjali pent half of her weekly allowance at the movies. To earn more money her parents let her clean the windows in the house for $5. What is her weekly allowance if she ended with $8?

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23-09-2017

w=her allowance

half was spent so half was left
w/2 was left
she earned 5 dollars

(w/2)+5=result
she ended with 8 dollars
so
(w/2)+5=8
solve for w
minus 5 both sides
w/2=3
multiply both sides by 2
w=6

her weekly alloance was $6

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