Question

Find each percent of change. Describe the percent of change as an increase or decrease. Round to the nearest tenth if necessary.

15lbs to 18lbs

$38 to $65

125lbs to 143lbs

Answer 1

These are all increases.

18 - 15 = 3

3/15 = 0.2 = 20%

Try the others, and I'll check your answers.

Answer 2

Thank you! Are these right?

$38 to $65
65-38=27
27/38=0.710 = 70%

125lb to 143lb
143-125=18
18/125=0.144= 14%

Answer 3

You're close.

27/38 = 0.7105 = 71.1% rounded to the nearest tenth

18/125 = 0.144 = 14.4%

Answer 4

Ok. Now I have a question about finding the minimum and maximum possible areas for rectangles with the following areas. This is what I got can you check please?

7 mi x 8 mi
Minimum 7.5x 6.5= 48.75 mi
Maximum 8.5x 7.5= 63.75 mi

12 km x 5 km
Minimum 11.5x4.5= 51.75 km
Maximum 12.5x5.5= 68.75 km