97seouls
15.02.2020 •
Mathematics
A rectangular excercise.mat has a perimater of 48 feet. The length of the mat is twice the width. Write and solve an equation to determine the length in feet of the mat.
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Ответ:
l = 16 feet
Step-by-step explanation:
P = a + b + c + d.
P = 2x + x + 2x + x = 48
6x = 48
x = 48/6
x = 8 feet
Thus, length = 2x = 2(8) = 16 feet
Ответ:
2:5
Step-by-step explanation:
david=24mins
mark = 1hour
change 1 hour to mins
DAVID=24
MARK=60
24:60
THEN SIMPLIFY
24/60
=2/5
2:5