ijohnh14
31.01.2020 •
Mathematics
The length of a rectangle is one less than 50% of the width if the perimeter is 31 inches what is the area of the rectangle in feet
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Ответ:
Area is 0.34 ft²
Step-by-step explanation:
A=L•w
P=2L+2w
L=w/2-1
31=2(w/2-1)+2w
31=w-2+2w
33=3w
11=w
L=w/2-1
=11/2-2/2
L=9/2
Aft=L/12•w/12
=(9/2)/12•11/12
Aft=0.34
Ответ: