Which pair ordered x’y is a solution to given system of linear equations 3x+y=1 5x+y=3
1 answer:
Answer:
(1, -2)
Step-by-step explanation:
Subtracting the first equation from the second gives ...
(5x +y) -(3x +y) = (3) -(1)
2x = 2 . . . . . collect terms
x = 1 . . . . . . . divide by 2
Then substituting into the first equation, we have ...
3·1 +y = 1
y = -2 . . . . . . subtract 3
The solution is (x, y) = (1, -2).
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Answer:
No, This is not reasonable estimate.
Step-by-step explanation:
Charles wants to take out a 5 year loan on car that cost $15000.
He make rough estimate to make payment. He can afford to pay up to $200 per month.
First we find total number of months in 5 years.
Total months = 5x12= 60 months
Total estimate to pay = =$12000
we can see cost of a car $15,000 is greater than his estimation $12,000.
Therefore, Charles estimation will not work.
No, This is not reasonable estimate.