SAT question #2?

Question

After spending 5/12 of his salary, a man has $140 left. What is his salary, in dollars?

it would helped me so much if you could write the equation out to help me understand it better.

Answer 1

If he spends 5/12, then he has 7/12 left.  7/12=140/x

x=140*12/7=$240  Not a very big salary.

Answer 2

cross multiply

5/12 = 140/x

Answer 3

You have to cross multiply and create a proportion, as shown here:

5/12=140/x

Answer 4

After spending 5/12 he has $140 LEFT..so $140 is 7/12 of his salary. (because 12/12 minus 5/12 is 7/12, which is what he has LEFT... it's kinda tricky because 5/12 is what he spent, but you know what he has LEFT to make the equation)

7/12 = $140/X

7/12 = $140/$240  so...

X = $240 = the man's salary

Answer 5

well you do

5/12=140/1 . . . . .and cross multiply

so you get 1680/5

then you divide

and u get 336 ?

Answer 6

if 5/12 = 140/total

just do cross multiplication and you get 140*12 / 5 = total

$336

Answer 7

Okay so that means that 5/12 of the salary equals $140.

So 5/12x=140 the multiply each side by 12/5 and get

x = $336