Weser17
21.08.2019 •
Mathematics
The length of marshall's poster is 2 times its width. if the perimeter is 72 inches, what is the area of the poster?
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Ответ:
72 = 2a + 2 * 2a
72 = 2a + 4a
72 = 6a / ÷ 6 (both sides)
a = 12
So one side is 12, the other one is 2 * 12 = 24 [inches]. It means that the area of the poster is 12 * 24 = 288 [square inches).
Ответ:
they are =
Step-by-step explanation: on a number line from 0 to 3 (shown) -3 and +3 are all three "jumps" away from 0.
3 2 1 0 -1 -2 -3
I hope I helped, good luck!