what is Jefff's income after spending $800/month on housing equal to 20%

Question

what is Jeff's monthly income if he spends $800 er month and it equals 20%

Answer 1

800 = 20% of X

 

800 = 0.2 X  <--- 20% = 0.2

 

8000 = 2x <-- multiplies by 10 to clear the decimal

 

x = 8000/2 = 4000

 

20% of $4000 monthly income is spent on housing, rent, mortgage.

which is 0.2 x 4000 = $800