8r(40)=4
r=1/80 that is the rate for each person...
10rt=7 using r we found before
10(1/80)t=7
t/8=7
t=56 minutes.
Answer: 2/3 times 4
Step-by-step explanation:
Translate that into an equation, and we get:
a+b = 24
a-b = 15
If we add these two equations, we get:
2a = 39
a = 39/2 = 19.5
Plug back in a = 19.5 and solve for b
a + b = 24
19.5 + b = 24
b = 4.5
The two numbers are 19.5 and 4.5.
Answer: Dimensions are given as below:
Length = 236 yards
width = 144 yards
Step-by-step explanation:
Let the width be x
then length = 92 more than x = 92+x
formula for perimeter of rectangle = 2 [ length + width]
therefore
760 = 2 [ 92+x + x ]
760 = 2 ( 92+2x )
760 = 184 + 4x
4x = 760 - 184
4x = 576
x= =
x = 144
So width = 144 yards
Length = 144+92 = 236 yards