Respuesta :
Answer:
The data is:
Matt makes $80 per moth.
James makes ($80 - x) per month.
James makes $816 per year.
Now, a year has 12 months, then we have that:
($80 - x)*12 = $816
With this equation we can find the value of x.
so we must isolate x in one side:
($80 - x)*12 = $816
$80*12 - x*12 = $816
$960 - x*12 = $816
x*12 = $960 - $816 = $144
x = $144/12 = $12
Then james makes $12 less than Matt each month, this means that James makes:
J = ($80 - $12) = $68 per month.