Answer:
Let the current speed be "c";
Then the boat speed in still wate is "5c":
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Upstream speed:
distance = 12 miles ; rate = 5c-c = 4c mph ; time = 12/4c = 3/c hrs
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Downstream speed:
distance = 12 miles ; rate = 5c+c = 6c mph ; time = 12/6c = 2/c hrs
Step-by-step explanation:
Equation:
time + time = 2 1/2 hrs
3/c + 2/c = 5/2
Multiply thru by 2c to get:
6 + 4 = 5c
c = 2 mph (speed of the current)
5c = 10 mph (speed of the boat in still water)
Answer:
UR in trouble
Step-by-step explanation:
Look, the First order is the biggest force in the galaxy.
Now, it is gonna send a star destroyer to ur house and blow it up.
Length times width times height
Answer:
She must read more than 5 more hours.
Step-by-step explanation:
Answer:
2. z=8
3.2x=16
5.distributive property
7.Addition property of equality
i'm not 100%ly sure so if it's wrong sorry and pls don't report mine i'm just trying to help not get my answer deleted:)
