Question

Identify the percent of change (POC) as an increase or decrease. Then find the percent of change. Round to the nearest tenth of a percent if necessary.


-12 inches to 36 inches
-50 punds to 35 pounds
-10 gallons to 24 gallons
-16 centimeters to 44.2 centimeters

If you could explain this as simple as possible with the work, for I have problems understanding things well, then that would be a HUGE help!

If you can answer all 4, I'm awarding 20 points!!

Answer 1

percent change=(change/original) tiimes 100 change= |original-new| so 12 to 36 |12-36|=|-24|=24 so pcercent change=100 times (24/12)=100 times 2=200% 50 to 35 |50-35|=|15|=15 percent change=100 times (15/50)=100 times 100 times 0.30=30% 10 to 24 |10-24|=|-14|=14 percent change=100 times (14/10)=100 times 1.4=140% 16 to 44.2 |16-44.2|=|-28.2|=28.2 percent change=100 times (28.2/16)= 100 times 1.7625=176.25% answers are -12 inches to 36 inches: 200% -50 punds to 35 pounds: 30% -10 gallons to 24 gallons: 140% -16 centimeters to 44.2 centimeters: 176.25%