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BigorU [14]
3 years ago
15

Kedar is comparing the costs of phone plans. For phone plan A, the cost is $15.00 to connect and then $0.02 per minute. For phon

e plan B, the cost is $4.69 to connect and then $0.08 per minute. For what usage does plan A cost the same as plan B
Mathematics
2 answers:
sp2606 [1]3 years ago
6 0
The two plans don't fall directly on a same prive, but after 3 hours of Data usage plan B costs more than plan A

After three hours plan A= $18.60

While plan B after three hours =$19.09

That means 3 hours has to pass before plan B costs more, That is 180 minutes

The rule per hour is $1.2 per hour for plan A and $4.8 per hour for plan B 
Leto [7]3 years ago
5 0

Answer:  After 172 minutes (approx) the usage of plan A is same as the plan B.

Step-by-step explanation:

Here, For phone plan A, the cost is $15.00 to connect and then $0.02 per minute.

And, For phone plan B, the cost is $4.69 to connect and then $0.08 per minute.

Let after x minutes the total usage of plan A is same as plan B.

Therefore, 15.00 + 0.02 x = 4.69 + 0.08 x

15.00 = 4.69 + 0.08 x - 0.02 x

15.00 - 4.69 = 0.06 x

0.06 x = 10.31

x = \frac{10.31}{0.06}

x = 171.833333333\approx 172

Thus, after 172 minutes (approx) the usage of both plan will be same.

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