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Vera_Pavlovna [14]
3 years ago
10

A photograph measuring four inches wide and five inches long is enlarged to make a wall mural. if the mural is 120 inches wide,h

ow long is the mural.
Mathematics
2 answers:
sattari [20]3 years ago
6 0
If you make the measurements into proportions you can solve it.
4/5=120/x where x equals how long the mural is. cross multiply to get 600=4x and divide both sides by 4
so the mural is 150 inches long.
Harlamova29_29 [7]3 years ago
6 0

Answer:

The mural is 150 inches long

Step-by-step explanation:

We can turn this given measurements in the problem into porportions to find out the new wide that we need like this:

The relationship between the wide of the photograph and the wide of the mural can be written in a fraction like this:

\frac{4}{120}

The relationship between the length of the photograph and the length of the mural can be written in a fraction like this:

\frac{5}{x}

where x is the length of the mural.

both ratios are the same because we maintian the proportion so we can put them like this:

\frac{4}{120}=\frac{5}{x}

we solve for x

x=\frac{5*120}{4}=150

The mural is 150 inches long

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