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valentinak56 [21]
4 years ago
11

The total cost to buy 12 balloons was $4. The total cost to buy 19 balloons was $6. What was the average cost of the balloons

Mathematics
2 answers:
Advocard [28]4 years ago
7 0
Average cost=total number of balloons/total cost=
total number=12+19=31
total cost=4+6=10

so average cost=31/10=3.1

the average cost was $3.10 per ballon
Whitepunk [10]4 years ago
5 0
The average cost of balloons is $3
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koban [17]

Answer:

13

Step-by-step explanation:

The average rate of change of f(x) in the closed interval [ a, b ] is

\frac{f(b)-f(a)}{b-a}

Here [ a, b ] = [2, 6 ]

f(b) = f(6) = 6² + 5(6) - 8 = 36 + 30 - 8 = 58

f(a) = f(2) = 2² + 5(2) - 8 = 4 + 10 - 8 = 6

Hence

average rate of change = \frac{58-6}{6-2} = \frac{52}{4} = 13

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4 years ago
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yan [13]

Answer:

180 degree rotation

Step-by-step explanation:

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8 0
3 years ago
Read 2 more answers
Please help and thank you
Flura [38]

Answer:

B

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answer: B

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