Question

Jane's salary is increased by 5% to 42210. How much was her salary before?

Answer 1

1.05x =42210
solve for x

Answer 2

To find ten percent, you would move the decimal over to the left one space

10% = 4221.0

Divide by 2

4221.0 / 2 = 2110

Answer 3

so then would I just do 42210 - 2110?

Answer 4

yes

Answer 5

I get it! Thank you :)

Answer 6

Anytime!

Answer 7

is it even correct?

Answer 8

thisSucks - your answer was not, because you were multiplying by the 1.05 and not subtracting the 5%

Answer 9

I think I did it correctly. her salary increased by 5% to 42210
so if we assume initial salary be X
new salary will be 1.05X
which is 42210

Answer 10

I am sorry, but that is not correct.

Answer 11

If jane's salary is increased by 5% it would be 5% + the salary which is 100% in decimal perentage it is 1.05
so thisSucks is right.
1.05x = 42210

Answer 12

Okay, but not to the question answer!

Her question is asking for x in his equation!!! That is what I gave her!

Answer 13

but what you gave him/her is incorrect..
1.05x = 42210
x = 40200

Answer 14

Who has 2 medals here??

Answer 15

Shall we call in a more experienced mathematician then?

Answer 16

@sparklemmelia are you really sure what you are doing?

Answer 17

yes

Answer 18

can you please educate us with your method

Answer 19

sigh. @ganeshie8 , help us :)

Answer 20

I think @sparklemmelia is right.

Answer 21

You dont need to say that to me

Answer 22

exactly how is she right? please explain your thoughts.

Answer 23

Leave us alone. problem is solved!

Answer 24

It is not.

Answer 25

Because if 100% was 42210, it would just be 5% less. Which makes it 42210 - 2110.

Answer 26

The question said what was the previous salary?

Answer 27

K at least explain us how did you solve it.

Answer 28

if you judge by 10% of 42210 it is not the same if you divide it by half.

Answer 29

okay!!!!!!!!!!!!!!! hold on and stop typing

Answer 30

40100 is not the same as 40200..

Answer 31

1.05 = 105%, 100% = normal salary, 105% , 5 % more.

Answer 32

Jane's salary is increased by 5% to 42210. How much was her salary before
Let x be the salary before the increase.
Since the originl salary is increased by 5%, we multiply (1+5%) to the original salary. And the new salary is given to be 42210.
So, the equation should be
x (1+5%) = 42210

Answer 33

ten percent of 42210.0 is 4221.00 (move decimal one space left)

now divide 4221.00 by 2 to get 5% = 2110.5

Now, to find out her salary before, we need to subtract the 5%
42210.0 - 2110.5 = 40,099.5

Answer 34

@sparklemmelia Would you mind checking you answer with a step or two?

Multiply your answer by 1+5%, and see if you get 42210. If you get 42210, yours is correct; else, it's not correct.

Answer 35

*your answer

Answer 36

It is not correct, how did I get that wrong? And is that any reason for those two to be harrasing my response by saying (something along the lines of) "if you dont understand the asking please dont answer" they deleted it....

Answer 37

@Callisto

Answer 38

your attempt was good

here is something to think about :-
if your previous salary was 100, ur new salary wid 5% increment wud be 105.
but if ur new salary is 105, simply taking 5% of 105 wont get u to ur previous salary of 100

Answer 39

Hmm... The correct logic should be like this:
If your original salary is x, then the increase of the salary, which is the 5% of it, is 0.05x
The new salary is x + 0.05x = 42210.
So, what you need to subtract is the 5% of the original salary, not 5% of the salary after increase.

Answer 40

you mkake sense Callisto