Question

Best estimate for 3/4% of 387

Answer 1

First you will have to multiply 3/4 times 387 which will give you 290.50

Answer 2

First, we have to set up a proportion.

3 a
____ = ______

4 387

Next, we cross multiply to get a simplified equation

3(387) = 4a

Next, we combine like terms by multiplying 3 and 387

1161=4a

Finally, we have to divide both sides by 4, to get our variable, a, alone.

a = 290.25

It says estimate, and I just solved the problem, but a good estimate would've been 300, as 3/4 of 400=300.