Math Help?

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The length of a rectangle is fixed at 25cm. What widths will make the perimeter greater than 90cm?

2007-09-09 10:17:29 · 2 answers · asked by Jack M 1 in Science & Mathematics ➔ Mathematics

Let width be w
50 + 2w > 90
2w > 40
w > 20

Width > 20 cm

2007-09-13 04:23:18 · answer #1 · answered by Como 7 · 0⤊ 0⤋

w=width, l= length

2w+2l>90
2w+50>90

2w>40

w>20

width must be greater than 20cm.

2007-09-09 17:40:21 · answer #2 · answered by Grandmaster_D 3 · 0⤊ 0⤋