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Sedaia [141]
3 years ago
8

On a map, the scale shown is 1 inch : 3 miles. If an island is 0.5 square inches on the map, what is the actual area of the isla

nd?

Mathematics
1 answer:
gtnhenbr [62]3 years ago
4 0

Answer:

4.5

Step-by-step explanation:

First we need to turn the ratio of 1 : 3 into a fraction

1:3 = 1/3

Next we need to square that fraction

1 x 1 = 1

3 x 3 = 9

Then we turn those numbers into a fraction

1/9

We turn the .5 into a fraction

.5/x

And cross multiply both fraction by each other

1/9 x .5/x

1 x X = X

9 x .5 = 4.5

So

4.5 = X

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3 years ago
in a choir the ratio of men to woman is 4:7. 25% of the men prefer classical songs, and 80% of the women prefer classical songs.
Paraphin [41]

Answer:

60%

Step-by-step explanation:

percentage of men in the choir = (4/11) x 100 = 36.4%

percentage of women in the choir = (7/11) x 100 = 63.6%

Percentage of men in the choir that prefer classical songs =  36.4 x0.25 = 9.1%

Percentage of women in the choir that prefer classical songs = 0.8 x 63.6% = 50.9%

percentage of the choir prefer classical songs = 50.9% + 9.1% = 60%

4 0
3 years ago
-40-2(3m+1/2)=7m-2<br> Solve for m please<br> Thank you.
Anvisha [2.4K]

Answer:

{-3}

Step-by-step explanation:

Раскроем скобки:

- 40 - 6m - 1 = 7m - 2

Перенесем все, что с m, в левую часть:

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m = -3

4 0
2 years ago
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iVinArrow [24]
The area of the sector (As) of a circle may be calculated by the formula,
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shepuryov [24]
The answer to this question is the graph B

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