ALGEBRA 2 PROBLEM HELP!
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# ALGEBRA 2 PROBLEM HELP!

[From: ] [author: ] [Date: 11-07-07] [Hit: ]
it costs \$0.20 to connect and then \$0.08 per minute. For what number of minutes does it cost the same amount to use each card for a single call?ANYONE KNOW THE ANSWER!-.......
help
Ravi is comparing the costs of long distance calling cards. To use card A, the cost is \$0.50 to connect and then \$0.05 per minute. To use card B, it costs \$0.20 to connect and then \$0.08 per minute. For what number of minutes does it cost the same amount to use each card for a single call? _________ min

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.5 + .05x = .2 + .08x
.3 = .03x
10 = x

Phone card A & B each costs \$1.00 at 10 minutes

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Card A --> 0.5 + 0.05m

Card B --> 0.2 + 0.08m

so, 0.5 + 0.05m = 0.2 + 0.08m

=> 0.03m = 0.3

so, m = 0.3/0.03 = 10.............i.e. 10 minutes and costs \$1.00

:)>

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\$0.05x + \$0.50 = \$0.08x + \$0.20
x is minutes, to find the answer, find x
1
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