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stellarik [79]
4 years ago
13

The ninth grade class at a local high school needs to purchase a park permit for $250.00 for their upcoming class picnic. Each n

inth grader attending the picnic pays $0.75. Each guest pays $1.25. If 200 ninth graders attend the picnic, which inequality can be used to determine the number of guests, , needed to cover the cost of the permit?
Mathematics
1 answer:
Vladimir [108]4 years ago
5 0
200*0.75=150
250-150=100
100/1.25=80
g is greater than or equal to 80
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Answer:

see the explanation in the procedure

Step-by-step explanation:

<u><em>The complete question is</em></u>

Tanisha and Rebecca are signing up for the new cellphone plans that only charge for the number of minutes and everything else is included in a monthly fee. Their plans are as follows:

Tanisha s Plan: $0.15 per minute used talking and a $25 monthly fee

Rebecca s Plan: $0.10 per minute used talking and a $18.50 monthly fee

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Let

x ----> the number of minutes

y ---> the total charge in dollars

we know that

<em>Tanisha s Plan</em>

y=0.15x+25 -----> equation A

<em> Rebecca s Plan</em>

y=0.10x+18.50 -----> equation B

To find out after how many minutes will the two plans charge the same amount, equate equation A and equation B

0.15x+25=0.10x+18.50

solve for x

0.15x-0.10x=18.50-25

0.05x=-6.5

x=-130\ min

therefore

They will never pay the same amount , because the time cannot be a negative number.

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

The missing table is shown in the attachment.

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The average rate of change from x=9 to x=10 is

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Answer:

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