After a 5% raise your new salary is $31500. Before the raise your salary was $_____.?

Answer 1

"pathetic, almost as low as a math teachers"

This might not be the answer you're looking for, but your teacher should get a laugh

Answer 2

Congratulations on your raise - they're hard to come by these days!

let X = your original salary (before the raise)
plus your 5% (.05X) raise - than:

X+.05X=31500 Divide both sides by X

1+.05=31500/X Add then multiply both
sides by X

1.05X=31500 divide by 1.05

x=30000

Proof:
5% (.05) times 30000 = 1500
30000+1500=31500

Answer 3

The answer is $30,000.
n + 0.05n = 31500
1.05n = 31500
n = 31500 / 1.05
n = 30000

Answer 4

Using Y to represent your old salary:

Y*1.05=$31,500
Y=$31,500/1.05

Y=$30,000

Answer 5

30,000.

Because 1.05 x ?= 31,500.
(.05 = 5%, so multiplying something by 1.05 is the same as adding 5%.)
Divide both sides by 1.05, and you get ? = 30,000.

Answer 6

30000