Answer:
36 minutes
Step-by-step explanation:
It takes 45 mins to deliver paper on her route.
Let X be the amount of time it takes the brother to complete the route.
The brother works at the rate of 1/x route per min
The girl works at the at the rate of 1/45 route per min
Girl and brother working together works at rate of 1/20 route per min
1/x + 1/45 = 1/20
Multiply through by 180x
180 + 4x = 9x
4x - 9x = -180
-5x = -180
x = -180 / -5
x = 36 mins.
It takes the brother 36 minutes to complete route alone.
Answer:
i wish i could help but im confused also
Step-by-step explanation:
...
<span>3x+ 2y+7 -5x+7y
= -2x + 9y + 7
hope it helps</span>
The answer is:
8 / (2/3) =
8 * 3/2 =
24/2 =
12 two-thirds oz packages can be made with 8 oz
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