komari0217
26.04.2021 •
Mathematics
Using the perimeter formula of a rectangle, P = 21+2w, find the perimeter of the rectangle giver
the length is 42 feet and the width is 26 feet
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Ответ:
-21
Step-by-step explanation:
the formula for the perimeter of a rectangle is 2l+2w. which means twice the length and twice the width added to together.
if you mean this:
x=21+2x
minus x on both sides
0=21-x
add 21 on both sides
21=-x
x=-21
than you subsitute
2×-21=-42
-42+21= -21
The perimeter is than -21
Ответ:
-21
Step-by-step explanation:
the formula for the perimeter of a rectangle is 2l+2w. which means twice the length and twice the width added to together.
if you mean this:
x=21+2x
minus x on both sides
0=21-x
add 21 on both sides
21=-x
x=-21
than you subsitute
2×-21=-42
-42+21= -21
The perimeter is than -21
Ответ:
there are 32 peanuts...
they took 50% and 25%
50+25%=75%
32*75%=24
32-24=8
Thus, there are 8 peanuts remaining.