Asked by Josiah
Jerry spent 1/5 of his allowance on a book and 3/8 of the remainder of his allowance for a pen.jerry remained with $12.00.calculate:
(A)jerry's allowance.
(B)the cost of the book.
(C)the cost of the pen.
(A)jerry's allowance.
(B)the cost of the book.
(C)the cost of the pen.
Answers
Answered by
John
1/5 x + 3/8(4/5 x)
x - 1/5 x - 3/8 (4/5 x) = 12.00
x - 1/5 x - 3/10 x = 12.00
10/10 x - 2/10 x - 3/10 x = 12
5/10 x = 12 x = 24
1/5 (24) = $ 4.80 on book
3/8 (19.80) =7.20
check 24 - 4.80 - 7.20 = 12
x - 1/5 x - 3/8 (4/5 x) = 12.00
x - 1/5 x - 3/10 x = 12.00
10/10 x - 2/10 x - 3/10 x = 12
5/10 x = 12 x = 24
1/5 (24) = $ 4.80 on book
3/8 (19.80) =7.20
check 24 - 4.80 - 7.20 = 12
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