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kezkiSilvarabryamy kezkiSilvarabryamy
  • 08-01-2017
  • Mathematics
Answered



A phone company offers two monthly plans. Plan A costs

$11

plus an additional

$0.12

for each minute of calls. Plan B costs

$28

plus an additional

$0.07

for each minute of calls.

What is the cost when the two plans cost the same

Verified Answer :

nanypla
nanypla nanypla
  • 08-01-2017

Set up equations.

Y=.12(X)+11
Y=.07(X)+28

Set equations equal to each other and solve

.12(X)+11 = .07(X)+28

.05(X) = 17
17/.05

X = 340

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