It is impossible to draw a parallelogram with 4 parallel lines (or to draw any quadrilateral with 4 parallel lines, for that matter).
Amount of money and checks could be one...
Answer:
5
Step-by-step explanation:
To divide fractions, we multiply the first fraction by the <u>reciprocal </u>of the second fraction. (Seven over one)
Now, we convert the fraction into a mixed fraction.
<em>The quotient of 5/6 and 1/7 is 5 5/6</em>
Let the speed of the boat be x
so going against the current the speed is x-7
going with the current the speed is x+7
let the distance be d
time = distance / speed
time to go against the current = d/(x-7)
time to go with the current = d/(x+7)
time going against the current is 3 times going <span>with the current
</span>
d/(x-7) = 3d/(x+7)
⇒⇒⇒ divide by d
1/(x-7)
= 3/(x+7)
x+7
= 3(x-7)
x+7 = 3x - 21
2x = 28
x = 14
So, the speed of the boat in still water is = 14 mph
Answer:
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