Answer:
(2/3, 13/3) (Exactly one solution)
Step-by-step explanation:
Write these equations in a column:
x+y=5
2x-y=-3
Note that we can eliminate y immediately by adding these two equations together. We get:
3x = 2, so that x = 2/3.
Substituting 2/3 for x in the first equation, we get:
2/3 + y = 5. Clear out fractions by multiplying all three terms by 3:
2 + 3y = 15, or 3y = 13. Then y = 13/3, and the solution is
(2/3, 13/3) There is exactly one solution.
1000/30 * $4 = A
<span>1000/50 * $4 = B </span>
<span>Subtract B from A.</span>
$92.50 * 10 =$925 ( deposited$92.50 into his account every month for 10 so we multiply)
$36.50*10 = $365 ( used $36.50 every month to pay art lessons every month means he took out)
925-365=560 ( total amt left in the account after taking out $365)
He used 1 over 2 of total money means
560/2 = 280
The answer would be B $280.
Hope this helps!!
D is the right answers
hope it help... :)
$3.85 per gallon
46.20/12 = 3.85
