At 50 minutes, the monthly bills will be same.
Step-by-step explanation:
Sprint charges;
Per month fee = $50 = 50*100 = 500 cents
Charges per minute = 15 cents
Let,
x be the minutes.
S(x) = 500 + 15x
Verizon charges;
Per minute charges = 25 cents
V(x) = 25x
When the bills will be same, the functions will be equal.
S(x) = V(X)
[tex]500+15x=25x\\500=25x-15x\\500=10x\\10x=500\\[/tex]
Dividing both sides by 10
[tex]\frac{10x}{10}=\frac{500}{10}\\x=50[/tex]
At 50 minutes, the monthly bills will be same.
Keywords: functions, division
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