Question

A photo 5 inches wide and 8 inches long is enlarged. How long is the new photo if it is How wide is the new photo if it is (1)12 inches; (2)20 inches; (3)10 inchs

Answer 1

Answer:

1) 7.5 inches, 2) 12.5 inches, 3) 6.25 inches

Step-by-step explanation:

In the problem statement, it is stated that the original dimensions of the photo are 5 inches by 8 inches. The 3 parts of the problem are asking what the respective width of the new photo would be given a different length measurement.

Using the ratio (5:8) you can set up an equation with x representing the missing measurement, and cross multiply to calculate the new width.

1) If the length is 12 inches, the width is 7.5 inches

$\frac{5}{8} = \frac{x}{12}$

$60=8x$

$\frac{60}{8} =x$

$7.5 = x$

2) If the length is 20 inches, the width is 12.5 inches

$\frac{5}{8} = \frac{x}{20}$

$100=8x$

$\frac{100}{8} =x$

$12.5 = x$

3) If the length is 10 inches, the width is 6.25 inches

$\frac{5}{8} = \frac{x}{10}$

$50=8x$

$\frac{50}{8} =x$

$6.25 = x$