Question

11. A battery was tested and found to power a cassette player for 12 hours. An improved version of the battery powered the cassette player for an extra 30 minutes. Find the percentage increase in the life of the batteries.

PLEASE EXPLAIN STEP BY STEP.

NO SPAM.❌​

Answer 1

Answer:

To calculate the percentage increase:

First: work out the difference (increase) between the two numbers you are comparing. Then: divide the increase by the original number and multiply the answer by 100. % increase = Increase ÷ Original Number × 100.

Answer 2

Answer in attachment.

Hope it helps yaa.