There are 60 people waiting in line for a movie. If 20 percent are wearing hats, how many people in line were not wearing hats?
1 answer:
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Answer: (5, -2)
Step-by-step explanation:
Substitute x-7 for y in 2nd equation
Solve for y
Answer:
if you are solving for y then the answer is 2x-5
We could do it by first writing
so that
and since , we have
# # #
Alternatively, we can just compute the product and take it mod 4:
and so we get the same result of 1.