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kirill115 [55]
3 years ago
8

49 percent of 15 1/8

Mathematics
1 answer:
maria [59]3 years ago
7 0
49% of 15 1/8 =
49% × 15 1/8 =
.49 × 15 1/8 =
.49 × 121/8 =
59.29/8 = 7.41

49% of 15 1/8 is 7.41
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One cellular phone carrier charges 26.50 a month plus .15cents a minute. Another carrier charges 14.50 a month plus .25 cents a
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I'm going to use m for minutes
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$26.50 first, and then add on for every minute

cost carrier 1 = 0.15m + 26.50

carrier 2
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$14.50 first, and then add on for every minute. 

cost carrier 2 = 0.25m + 14.50 

to find out when they cost the same, make the two costs equal to each other:

0.15m + 26.50 = 0.25m + 14.50

all that's left is to solve for m

0.15m + 26.50 = 0.25m + 14.50
subtract both sides by 0.15 m
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12 = 0.1 m 
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m = 120

the phone carriers will have the same cost at 120 minutes


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4 years ago
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Answer:

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3 years ago
What are the solutions of the quadratic equation 49x2 = 9?
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