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Fantom [35]
3 years ago
13

James fenced in his backyard. The perimeter of his fence is 20 feet, and the width of his yard is 2 feet wide. Use the perimeter

formula to find the length of his rectangular yard in inches: P = 2L + 2W.
8 in.
18 in.
72 in.
96 in.
Mathematics
1 answer:
algol [13]3 years ago
4 0
Plug in what we know
P = 20 feet, W = 2 feet
20 = 2L + 2(2)
20 = 2L + 4
16 = 2L, L = 8 feet
Convert feet to inches
1 foot = 12 inches
12 * 8 = 96 inches

Solution: 96 inches
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Answer:

The shape has a total area of 14.96cm²

Step-by-step explanation:

To solve this all you need to do is take the area of the outer rectangle, and subtract the area of the inner rectangle.

The outer rectangle is 5.6 by 6.4 cm.  To get its area, just multiply those dimensions. When you do so you get the area 35.84cm².

Next the inner rectangle needs to be subtracted.  First though, we need its width, which we're not directly given.

We do however know the width of the entire shape, and the width of segments left after cutting out the inner rectangle.  All we need to do then is subtract the later from the former to the the inner rectangle's width:

5.6cm - 1.2cm - 0.8cm = 3.6cm

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The final step is to subtract that 20.88 square cm from the 35.84 that we already have.  Doing so gives us a result of 14.96cm², and that is the final answer.

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