ashiteru123
20.03.2020 •
Mathematics
Mr. Nguyen is drawing a rectangle. The width of the rectangle is 2 1/2 less than 1/4 times the length. The perimeter of the rectangle is 23 inches. What is the length of the border
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Ответ:
r+b=27
r=-5+3b
r=3b-5
subsitute 3b-5 for r in first equation
3b-5+b=27
4b-5=27
add 5
4b=32
divide by 4
b=8
subsitute
b+r=27
8+r=27
subtracct 8
r=19
red=19
blue=8