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7nadin3 [17]
3 years ago
10

How many solutions for each system

Mathematics
1 answer:
muminat3 years ago
3 0
Infinitely many is the first one, because you can convert one equation into another one (3x-3y=-18--->  x-y=-6, ---->y=x+6)

second one is one solution, because
y=-4x+11 and y=11+6x,--->-4x+11=11+6x, -4x-6x=0, x=0

third one
y =-2x+5 and y=-7-2x ,-2x+5=-7-2x, --->5=-7 false , no solutions




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Step-by-step explanation:

From the question, we are informed that John needs to write 2,146 online math questions in 45 weeks and that he is estimating how many questions he should write each week to meet the deadline.

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