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julia-pushkina [17]
3 years ago
9

The length of a rectangle is 7 yd less than three times the width, and the area of the rectangle is 66 yd ^2. Find the dimension

s of the rectangle
Mathematics
1 answer:
lesantik [10]3 years ago
8 0
x-\ width\\
(3x-7)\ -\ length\\\\
Formula \ for\ area\ of\ rectangle:\\Area=2length+2width\\\\
66=2x+2(3x-7)\\
66=2x+6x-14\\
66=8x-14\ \ \ |Add\ 14\\
80=8x\ \ \ |Divide\ by\ 8\\
x=10\\
3x-7=3*10-7=30-7=23\\\\Dimensions:\\
length: 23yd\\
width:10yd.
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