I have another question.. I think one of my classmates already asked this but.. i dont know how to solve it nor what the answer is.
Mrs. Copeland works at the school 40 hours a week. Before she became a teacher, she used to work at a school 15 hours a week. By what percentage did the hours Mrs. Copeland works increase.
A. 6.25%
B. 8.75%
C. 62.5%
D. 87.5%
8 answers
15 hours a week ????? typo ?????
On my question, it says 15 hours..
this was also done for you.
None of the choices is correct
consider how a 50% increase means that 50% is added
So, if 4 grows to 6, then since the actual change is 1/2 of 4, that's a 50% increase. 6/4 = 3/2, so the % increase is 3/2 - 1 = 1/2 = 50%
For this problem, the increase is 25
40/15 = 8/3
8/3 - 1 = 5/3, or 2.67, making a 267% increase
None of the choices is correct
consider how a 50% increase means that 50% is added
So, if 4 grows to 6, then since the actual change is 1/2 of 4, that's a 50% increase. 6/4 = 3/2, so the % increase is 3/2 - 1 = 1/2 = 50%
For this problem, the increase is 25
40/15 = 8/3
8/3 - 1 = 5/3, or 2.67, making a 267% increase
Mr. ¨oobleck¨ I told you I am a classmate of ¨ I need help¨ or whatever his name is
I bet they mean 35, not 15
Nope. I mean 15.
Over here disliking my comments like ima care LOLL! luh boy or guh must not know that ion really care
The way I see it:
increase in hours = 40 - 15 = 25
25/15 = 1.6666... = 166.7%
so it increased by 166.7%
or the new hours is 267.7% of the old hours
check:
166.7% of 15 = 25
new hours = 15+25 = 40
or
new hours = 2.666...*(15) = 40
as oobleck noted, none of the choices are correct
increase in hours = 40 - 15 = 25
25/15 = 1.6666... = 166.7%
so it increased by 166.7%
or the new hours is 267.7% of the old hours
check:
166.7% of 15 = 25
new hours = 15+25 = 40
or
new hours = 2.666...*(15) = 40
as oobleck noted, none of the choices are correct
1 answer