lukevader311
09.01.2020 •
Mathematics
The width of a rectangle is fixed at 15cm. what lengths will make a
perimeter greater than 88 cm? the lenght must be greater than
.
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Ответ:
The length must be greater than 34 cm.
Step-by-step explanation:
The formula for determining the perimeter of a rectangle is expressed as
Perimeter = 2(length + width)
The width of a rectangle is fixed at 15cm. Let the length of the rectangle be represented by L. Therefore
2(15 + L) > 88
30 + 2L > 88
2L > 88 - 20
2L > 68
L > 68/2
L > 34 cm
So the length of the rectangle can be 35 cm, 36 cm, 37 cm, 38 cm, 39 cm, 40 cm, 41 cm. It goes on.
Ответ:
-2.4
Step-by-step explanation:
distribute the -4 and -2
add 12p to both sides
subtract 12 from both sides
divide