## anonymous one year ago The ratio of the perimeters of two rectangles is 4 to 7. The perimeter of the larger rectangle is 42 inches. What is the perimeter of the smaller rectangle? A. 10.5 inches B. 73.5 inches C. 28 inches D. 24 inches

1. anonymous

It's c?

2. xapproachesinfinity

let's name the perimeter of the small x and the large y so $\frac{y}{x}=4/7$ they gave us one perimeter y=42 so $\frac{42}{x}=4/7$

3. anonymous

42/7 = 6 x4 = 24

4. calculusxy

This is a proportion of smaller to larger: 4. x -- = --- 7. 42

5. anonymous

Oh...D...Sorry. I read it wrong. Thank you. All of you.

6. calculusxy

So just solve for x.

7. calculusxy

You're welcome :)

8. xapproachesinfinity

i turned out i wrote it the wrong way should be smaller to larger

9. anonymous

It's okey

10. xapproachesinfinity

but you got the point :)

11. anonymous

I passed C:

12. anonymous

I say D