3 years ago

What is 2 7/9 as a improper fraction

Mathematics

1 answer:

Alex_Xolod [135]3 years ago

5 0

multiply the denominator by the whole number, 2x9=18

then add the numerator the your answer, 18+7=25

but the denominator stays the same, hence your answer, 25/9

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An oarsman can row his boat 3 mph in still water. He sets out on the Illinois River, which flows at 5 mph. We are interested in

Artyom0805 [142]

Answer:

The speed from the observer is 8 mph.

Step-by-step explanation:

When the boat is going downstream with full force, its speed will be the one the oarsman can row on still water added by the flow of the river. In this case he can row the boat at speed of 3 mph, while the stream is 5 mph, so the speed from the observer standpoint is:

$speed = 3 + 5\\speed = 8 \text{ mph}$