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Reil [10]
3 years ago
10

the cost per minute of a conference phone call, originally $2.80, increased by 20%. What is the new price?

Mathematics
2 answers:
erica [24]3 years ago
4 0
Y=2.80(1.20)^1
=$3.36
Tanzania [10]3 years ago
3 0
My answer is $2.24 dollars.
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padilas [110]

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16% is 4/25 15% is 3/20 14% is 7/50 13% is 13/100 12% is 3/25 11% is 11/100 10% is 1/10 9% is 9/100 8% is 2/25 7% is 7/100 6% is 3/50 5% is 1/20 4% is 1/25 3% is 3/100 2% is 1/50 and 1% is 1/100

Step-by-step explanation:

If you want to find a percent you have to put that number over 100 so say I was looking for 20% you would put 20/100 then you would reduce by dividing if they can and both can be divided by two so it would then be 10/50 then those can be divided by 10 so it would be 1/5

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How do you solve these type of problems ?
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