Answer:the length of the rectangle is 36 feet
Step-by-step explanation:
Let L represent the length of the rectangle.
Let W represent the width of the rectangle.
The length of a rectangle is equal to three times its width. This means that
L = 3W
The formula for determining the perimeter of a rectangle is expressed as
Perimeter = 2(L + W)
If the perimeter is equal to 96
feet, it means that
2(L + W) = 96
L + W = 96/2 = 48
Substituting L = 3W into L + W = 48, it becomes
3W + W = 48,
4W = 48
W = 48/4 = 12
L = 3W = 3 × 12 = 36
They would 40 miles in 5 hours traveling at 8 miles an hour
Answer:
B is the answer. ........
53361 + 9.5b = 25.25b
53361 = 25.25b - 9.5b
53361 = 15.75b
53361/15.75 = b
3388 = b <=== the publisher would have to sell 3388 books
Answer:
b = 33.546.
Step-by-step explanation:
a + b + c = 77 (1)
a - 5 = b + 5 (2)
a = 5c (3)
from equation 2:
a - b = 10
Adding this equation to equation 1:
2a + c = 87
But a = 5c so
10c + c = 87
c = 87/11 = 7.909
and a = 5*7.909 = 35.545.
b = 77 - 7.909 - 35.545
= 33.546