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Masja [62]
3 years ago
6

Scott earned $120 babysitting. He saved 45% of his money. Use mental math to find how much he saved.

Mathematics
2 answers:
Dimas [21]3 years ago
6 0

Step-by-step answer:

Question requests use of mental math.

When calculating 45%, we use the fact that 45% is 90% of 50%, or

45% can be obtained by subtracting 1/10th of half the amount.

Thus 45% of $120 is obtained by

subtracting 1/10th of half of $120, which is

subtract 1/10th of $60

which in turn gives 60-6  =  $54.

no calculator is required.

Stolb23 [73]3 years ago
4 0
<h2>Answer:</h2>

<u>Scott saved </u><u>$54</u><u> </u>

<h2>Step-by-step explanation:</h2>

The simple way to do is to find the 45% of the total money and that is what Scott has saved

So

45% of $120 would be = (45 / 100) * 120

45% of $120 would be = 54

So he saved $54 and he has $66 with him now

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