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A phone company offers two monthly plans, Plan A costs $21 plus an additional S0.10 for each minute of calls. Plan B costs $16 plus an additional $0.14 for
each minute of calls
for
what amount of calling do the two plans cost the same

What is the cost when the two plans cost the same>

Respuesta :

mhanifa

Answer:

  • 125 min
  • $33.5

Step-by-step explanation:

Equation for Plan A:

  • A = 21 + 0.1x

Equation for Plan B:

  • B = 16 + 0.14x

If A = B, we have:

  • 21 + 0.1x = 16 + 0.14x
  • 014x - 0.1x = 21 - 16
  • 0.04x = 5
  • x = 5/0.04
  • x = 125

The two plans cost the same with 125 minutes calling

The plans cost:

  • 21 + 0.1*125 = 33.5
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