Use the elimination method to solve the given system of equations.
To do so, multiply the first equation by -3 so that the coefficient of x in the first equation becomes the additive inverse of the coefficient of x in the second equation:
Then, the system is equivalent to:
Add both equations to eliminate the variable x and to obtain an equation in terms of the variable y only:
Replace y=2 into the first equation to find the value of x:
Replace y=2 and x=5 into the second equation to confirm the answer:
Therefore, the solution to the system of equations is x=5, y=2.
Answer:
Her balance at the beginning of November=$973.76
Step-by-step explanation:
What is Natasha's credit balance at the beginning of November?(i.e. at the end of October)
The balance at the end of each month is the beginning balance plus the current month's purchases minus the minimum payment for the month.
Sept =$922.93+$33.70+9.89%/12*($922.93+$33.70)
Sept=$964.51
payment= 964.51*3.08%
balance at the end of Sept=$964.51-($964.51*3.08%)
balance at the end of Sept=$934.80
Oct=$934.80+$61.70+9.89%/12*($934.80+$61.70)
Oct=$ 1,004.71
payment=$1,004.71*3.08%
balance at the end of Oct(at beginning of Nov)=$ 1,004.71-($1,004.71*3.08%)
balance at the end of Oct(at beginning of Nov)=$973.76
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Multiply $23 by 7. The answer is $161.
I think it might be c
Step-by-step explanation:
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Take the third equation and divide it by 2. If the equations are the same, they have infinitely many solutions because every point on one eq. is the same on the other. You can say they overlap.