4 years ago

What is the mistake? 3a+4b=7ab

Mathematics

2 answers:

MrRa [10]4 years ago

6 0

Answer:

You cannot add like terms like that.

Step-by-step explanation:

The terms are supposed to be added together, by combining them like that you are multiplying them together.

romanna [79]4 years ago

4 0

7ab because you put it in the wrong orders

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Explanation:

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1 year ago

A plane flies 440 miles with wind, and 340 miles against wind in same time. If speed of wind is 25 mph, find speed in still air?

Viefleur [7K]

V = s/t

now, t is equal for both cases so we write these 2 equations:
440/(Vp+Vw) = t

and

340/(Vp-Vw) = t
Now again, since t is equal for both cases we can make these 2 equations equal to eachother.
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