525 divided by 9 I forgot how to divide
1 answer:
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The best way to solve this problem is by plugging in each answer choice for both equations and seeing which one works. You can already see that choice A doesn't work because -1 is not greater than or equal to 4. That means you just need to test choices B and C!
Choice B (4, -2)
2 is not greater than or equal to 6, so choice B doesn't work.
Choice C (4, 2)
Since 6 is equal to 6 and 4 is equal to 4, choice C works!
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Answer: C) (4, 2)
Choice B (4, -2)
2 is not greater than or equal to 6, so choice B doesn't work.
Choice C (4, 2)
Since 6 is equal to 6 and 4 is equal to 4, choice C works!
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Answer: C) (4, 2)
Answer:
For a monthly cost of at least $7 and at most $8, you can have between 100 and 110 calling minutes.
Step-by-step explanation:
The problem states that the monthly cost of a celular plan is modeled by the following function:
In which C(x) is the monthly cost and x is the number of calling minutes.
How many calling minutes are needed for a monthly cost of at least $7?
This can be solved by the following inequality:
For a monthly cost of at least $7, you need to have at least 100 calling minutes.
How many calling minutes are needed for a monthly cost of at most 8:
For a monthly cost of at most $8, you need to have at most 110 calling minutes.
For a monthly cost of at least $7 and at most $8, you can have between 100 and 110 calling minutes.