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Juliette [100K]
3 years ago
15

HELP FAST!!! Find 78% of 380. Round to the nearest tenth if necessary.

Mathematics
2 answers:
bonufazy [111]3 years ago
5 0
78% = 78 / 100 = 0.78

What is 78% of 380

= 78% * 380

= 0.78 * 380

= 296.4

U said I should round it up IF NECESSARY so yeah....


Effectus [21]3 years ago
4 0
78% of 380
is 80% of 380 - 2% of 380
so it is 4/5 of 380 - 7.6
so it is (4*76)-7.6
so it is 304-7.6
296.4
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Factors of 6 are : 1,2,3 and 6.

Let us find probability of getting the number that is a factor of 6.

P(\text{ The number is a factor of 6})=\frac{4}{6} =\frac{2}{3}

Now let us find probability of getting a number more than 2 (3,4,5,6).

P(\text{ The number is a greater than 2})=\frac{4}{6} =\frac{2}{3}

We can see that these two events are mutually inclusive events. We can find probability of mutually inclusive events by formula P(\text{X or Y})=P(X)+P(Y)-P(\text{X and Y}).  

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Now we will find probability of getting the number is a factor of 6 or more than 2 using above formula.

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