Asked by Anonymous
There were 1050 marbles in Box A and 35 marbles in Box B. When an equal number of marbles was added to each box, the number of marbles in Box A was twice that in Box B. How many marbles were added into each box?
Answers
Answered by
mathhelper
Box A --- 1050
Box B ---- 35
add same amount of x to each:
box A = x + 1050
box B = x + 35
x + 1050 = 2(x+35)
x + 1050 = 2x + 70
980 = x
980 marbles were added to each box
check
new box A = 1050 + 980 = 2030
new box B = 35+980 = 1015
and 2030 is twice 1015, so my answer is correct
Box B ---- 35
add same amount of x to each:
box A = x + 1050
box B = x + 35
x + 1050 = 2(x+35)
x + 1050 = 2x + 70
980 = x
980 marbles were added to each box
check
new box A = 1050 + 980 = 2030
new box B = 35+980 = 1015
and 2030 is twice 1015, so my answer is correct
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