Question

The population in a small city increased from 1250 people to 2780 people.

What is the percent of increase in the number of people?
Round to the nearest percent.

Answer 1

Are there answer choices?

Answer 2

I think you have to put 1250/2780 in percent and then round to the nearest tenth.

Answer 3

close. 2780/1250

Answer 4

Yeah sorry have it backwards.
Then you would get 44.98 percent then round to nearest tenth

Answer 5

also the nearest percent means the nearest whole number.

for example 63.3 becomes 63 and 78,6 becomes 79

Answer 6

a. 45%

b. 55%

c. 122%

d. 153%

Answer 7

So the nearest tenth would be ?

Answer 8

80? tell me if im wrong

Answer 9

1250 people to 2780

is like more than 100% increase right

Answer 10

it will be 45 because you would round?

Answer 11

o yea sry...

Answer 12

Your fine, 44.98 rounds to 45.
So your answer would be A

Answer 13

ooooo ok thanks guys

Answer 14

Tell me if Im wrong? @bibby @rational

Answer 15

you are

Answer 16

Okay and how?

Answer 17

but rational will explain why 100x better than I can

Answer 18

i give u medal for enthusiasm :) but 45% is wrong yeah

Answer 19

because, a) we're trying to find the percent of increase
b) that's not the right amount. check to see what 145% of 1250 is

Answer 20

Okay explain so I can learn too(:

Answer 21

okay, so to find the original percent change we set up an equation \(1250x=2780\) where x is some percent increase, solve for x we get \(x=\dfrac{2780}{1250}=2.22\) convert the decimal to a percent by multiplying by 100 to get 222%

Answer 22

then the percent increase means you subtract 1 (or 100%)

Answer 23

okay..

Answer 24

C

Answer 25

Either C or D

Answer 26

I said D

Answer 27

but I meant c, for some reason I thought 122 was D in my head

Answer 28

but yeah 2.22-1=1.22=122%

Answer 29

kk thnks