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
These are all increases.
18 - 15 = 3
3/15 = 0.2 = 20%
Try the others, and I'll check your answers.
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%
You're close.
27/38 = 0.7105 = 71.1% rounded to the nearest tenth
18/125 = 0.144 = 14.4%
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
To find the percent of change, you need to calculate the difference between the two values and then express it as a percentage of the original value. Here's how you can do it:
1. 15lbs to 18lbs:
Step 1: Calculate the difference between the two weights: 18lbs - 15lbs = 3lbs.
Step 2: Divide the difference by the original weight: 3lbs / 15lbs = 0.2.
Step 3: Convert the decimal to a percentage: 0.2 * 100 = 20%.
Conclusion: The weight increased by 20%.
2. $38 to $65:
Step 1: Calculate the difference between the two amounts: $65 - $38 = $27.
Step 2: Divide the difference by the original amount: $27 / $38 = 0.71 (rounded to two decimal places).
Step 3: Convert the decimal to a percentage: 0.71 * 100 = 71%.
Conclusion: The amount increased by 71%.
3. 125lbs to 143lbs:
Step 1: Calculate the difference between the two weights: 143lbs - 125lbs = 18lbs.
Step 2: Divide the difference by the original weight: 18lbs / 125lbs = 0.144.
Step 3: Convert the decimal to a percentage: 0.144 * 100 = 14.4%.
Conclusion: The weight increased by 14.4%.
Remember to round to the nearest tenth as directed if necessary.