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emmasim [6.3K]
3 years ago
15

What is 80% of 400? show work

Mathematics
2 answers:
maxonik [38]3 years ago
8 0
Of in mathematics means multiplication

80% = 80/100 = 0.8

0.8 \times 400 = \boxed{320}

80% of 400 is 320.
pychu [463]3 years ago
5 0
80% of 400

We can set up a proportion because it makes things more clear. 

First, we need to assume that 400 is our '100'. Usually, 100 is our total value. 

400/x=100/80
<span>(400/x)*x=(100/80)*x       </span>
<span>400=1.25x        </span>
<span>400/1.25=x </span>
<span>320=x </span>
<span>x=320
</span>
Our final answer: 320

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