SOLUTION: The outside of a mosaic mirror frame measures 14 in. by 20 in., and 160 in^2 of mirror shows. Find the width of the frame.

Question 890279: The outside of a mosaic mirror frame measures 14 in. by 20 in., and 160 in^2 of mirror shows. Find the width of the frame.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
in2 of total area
---------------------------------------
The width is uniform all around, I assume
Let = the width of the frame

Use quadratic formula to solve:

Note that I used the negative square root of
because if I used the positive square root, I would
get , which makes no sense
So, the width of the frame is 2 inches
-------------------------------------
check:

OK
RELATED QUESTIONS
The outside of a picture frame measures 14 in by 20 in. 172 in^2 of the picture shows.... (answered by josmiceli)

The outside of a picture frame measures 14 in by 20 in. 212 in^2 of the picture shows.... (answered by josgarithmetic,ikleyn)

The outside of a picture frame measures 14 in by 20 in. 220^2 of the picture shows. Find... (answered by JBarnum)

A picture frame measures 14 cm by 20 cm. 160 cm^2 of the picture shows inside the frame.... (answered by checkley77)

The outside of a picture frame measures 14 in by 20 in. 148 in squared of the picture... (answered by jorel555)

The outside of a picture frame measures 14 in by 20 in. 184 in squared of the picture... (answered by jorel555)

The outside of a picture frame measures 14 in by 19 in. 150 in squared of the picture... (answered by josmiceli)

The outside of a picture frame measures 12in by 19in. 78 in^2 of the picture shows.... (answered by chriswen)

1. the dimensions of a rectangular flower garden were 8 m by 15 m. Each dimension was... (answered by mananth)