# Math

1. How many solutions does the system of equations have?
4x=-12y+16 and x+3y=4
A. One
B. Two
C. Infinitely many
D. None

2. How many solutions does the system of equations have?
Y=5x+7 and 3y-15x=18
A. One
B. Two
C. Infinitely many
D. None

3. How many solutions does the system of equations have?
x-2y=6 and 3x-6y=18
A. One
B. Two
C. Infinitely many
D. None

4. How many solutions does the system of equations have?
y-7x=-14 and 7y-49x=-2
A. One
B. Two
C. Infinitely many
D. None

My answers are: A C D A

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1. #1
Note that
x+3y=4
can be rewritten as
4x=-12y+16
so both lines are the same, so C

#2 Y=5x+7
can be written as
3y-15x=21
So, the two lines are parallel: D

#3 x-2y=6
is
3x-6y=18
So, it's the same line: C

#4 y-7x=-14
is
7y-49x=-98
so, D

Looks like you need some further study on these.

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2. I'm sure a math tutor will help you sometime this evening.

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👤
Ms. Sue
3. looks like you should have been studying instead of waiting for someone to do them for you.
Still, maybe what I showed you will help.

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4. I'm not good at these things. Usually I am a fast learner, but this year has been really hard. Thank you!

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5. Yes, it has helped

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6. Ms. Sue, I'm not trying to be rude or anything, but it's a little late for a tutor today. Maybe you meant some other day, I'm not sure, but just in case.

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7. 6:30 p.m. is a normal homework time. I'm sorry if it's too late for you.

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Ms. Sue
8. Our tutors are usually here until midnight and some insomniacs sometimes post responses all through the night.

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Ms. Sue
9. nobody likes you ms sue

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10. fact

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11. Ms. Sue, did you ever think that people might be in a different time zone than you?

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