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Harlamova29_29 [7]
3 years ago
6

Originally the dimensions of a rectangle were 20cm by 23cm. When both dimensions were decreased by the same amount, the area of

the rectangle decreases by 120. Find the dimensions of the rectangle.
Mathematics
1 answer:
SIZIF [17.4K]3 years ago
6 0
The answer is 17cm by 20cm.
The original area is 460cm (20x23), minus 120cm gives a new area of 340cm.
20cm-3cm=17cm and 23cm-3cm=20cm
17cmx20cm = 340cm
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