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quester [9]
4 years ago
15

the cost of a phone call is c pence which is calculated using the formula c=20+5m where m is the number of minutes the phone cal

l lasted find the value of c when 1)m=1 2)m=5 3)m=12
Mathematics
1 answer:
OLga [1]4 years ago
4 0
I believe the answer is 25 because it says that 2)m=5 or it may be 30 because 5times 2 equals 10 and 10plus 20 gives you 30
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3 years ago
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yaroslaw [1]

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  • 132%: 2112
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Step-by-step explanation:

<u>64% of 1600</u>

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<u>96% of 1600</u>

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