Question

Mary reduced the size of a painting to a width of 3.3 inches . What is the new height if it was originally 32.5 inches tall and 42.9 inches wide?

Answer 1

x

=

2.5

inches

Explanation:

This can be regarded as two quantities in DIRECT PROPORTION because the shape of the painting will stay the same.

x

3.3

=

32.5

42.9

←

←

compare the heights

compare the widths

42.9

x

=

3.3

×

32.5

←

cross multiply

x

=

3.3

×

32.5

42.9

←

solve for

x

x

=

2.5

inches