A 3” x 5” photo is enlarged so that the length of the new photo is 7 inches. Find the width of the new photo.

a.
4.20 inches
c.
5.25 inches
b.
6.75 inches
d.
7.20 inches

Question

A 3” x 5” photo is enlarged so that the length of the new photo is 7 inches.  Find the width of the new photo.

a.
4.20 inches
c.
5.25 inches
b.
6.75 inches
d.
7.20 inches

mertsj · Answer

5 times something = 7.  Find the something and then multiply it by 3.  That will be your answer.

mertsj · Answer

@polaris_s0i NO!!

polaris_s0i · Answer

and of course I guessed wrong:
it was W X L I guess:

so:

$$\frac{3}{5} = \frac{w}{7}$$
$$7*3 = 5w$$
$$21 = 5w$$
$$\frac{21}{5} = w$$
$$4.2 = w$$

so A is the answer

mertsj · Answer

So it would really be great if you would allow the asker to solve the problem after it has been explained to her.

polaris_s0i · Answer

ok, I will do