The battery on Sarah's old computer can last for 3 3/4 hours. She bought a new computer that has a battery that can last 20% longer. How long can the battery on Sarah's new computer last?
(SOMEONE PLS HELP ME WITH THIS)
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snowflake0531:
Do you know how you would set up this equation?
Sweetie145:
ok
Sweetie145:
um
Sweetie145:
lost
Sweetie145:
yes
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snowflake0531:
Actually, we need to add in the principle amount, so we would do
(1+r)p
In this case, r is the percent of increase, which is 20%
So, we would multiply
120% and 3 3/4 hours together
Sweetie145:
ok
snowflake0531:
To convert a percentage to a decimal, you divide the decimal by 100
So, 120% converted into a decimal is 1.2
snowflake0531:
3 3/4, you should know, is 3.75
So,
3.75 * 1.2
Sweetie145:
thank u so much @snowflake0531
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snowflake0531:
yw~!
Sweetie145:
no u did great to
PWRDrEaMz:
ok
Sweetie145:
can i ask sum
PWRDrEaMz:
?
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