The base cost of a cell phone plan is $55.25 a month,
which includes 600 minutes of calling time. You were billed $72.40
last month for useing 649 minutes. What is the per-minute cost of exeedingthe calling timeincluded the base cost?
2007-01-21 15:39:12 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
you were billed $72.40 for 649 minutes
your plan costs $55.25 for 600 minutes
subtracting, you paid $17.15 for 49 minutes, or $0.35 per extra minute.
2007-01-21 15:50:30 · answer #1 · answered by jaybee 4 · 0⤊ 0⤋
Your base cost $55.25 is a sum of calling time and other charges as well. So, from it, it is not possible to calculate the base minute rate.
However, $72.40-$55.25/49 gives 35c. After consuming 600 mins of basic calling time, you will be charged at 35c per minute.
That's all the information, I believe, we can get from the data we have.
2007-01-21 15:46:14 · answer #2 · answered by jaggie_c 4 · 0⤊ 0⤋
Hi. The 49 extra minutes cost $55.25 from $72.40. Subtract, then divide by the 49 minutes..
2007-01-21 15:43:35 · answer #3 · answered by Cirric 7 · 0⤊ 0⤋
649 - 600 = 49 extra minutes.
$72.40 - $55.25 = cost for the extra minutes.
$72.40 - $55.25 = $17.15
$17.15/49 = $0.35
Answer - $0.35 per minute in overage. (35 cents)
2007-01-21 15:52:46 · answer #4 · answered by Anonymous · 0⤊ 0⤋
(72.40 - 55.25) / 49 = answer
figure out how much of the cost was extra minutes, and then divide by how many extra minutes there were.
2007-01-21 15:46:56 · answer #5 · answered by cross country runner 2 · 0⤊ 0⤋
$72.40 - $55.25 = $17.15 for the extra 49 minutes.
$17.15 / 49 = 35 cents/minute.
2007-01-21 15:44:58 · answer #6 · answered by hznfrst 6 · 0⤊ 0⤋
(74.20-55.25) divided by 49 (number of minutes over plan)
tada -
now you do the math
2007-01-21 15:43:57 · answer #7 · answered by tomkat1528 5 · 0⤊ 0⤋
(72.40 - 55.25)/(649-600) = $0.35
2007-01-21 15:45:15 · answer #8 · answered by Steve P 2 · 0⤊ 0⤋
72.40-55.25=17.15
49=17.15x
x=2.86 answer
2007-01-21 15:43:54 · answer #9 · answered by wesnaw1 5 · 0⤊ 2⤋