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bezimeni [28]
3 years ago
13

3+1 + - + ... ? What is the sum of the first 7 terms of this geometric series: 3+1+ 3

Mathematics
1 answer:
mote1985 [20]3 years ago
8 0

Answer:

15

Step-by-step explanation:

3+1+3+1+3+1+3= 15 this is what it would look like if you write it out. To save time do 3 times 4 to get 12 and then just add three ones to 12 to get 15.

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15 point question
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Answer:

It will cost $12.5 per person to charter a bus for 36 passengers

Step-by-step explanation:

The cost per person c of chartering a tour bus  varies inversely as the number of passengers  n.

We can write:

c\:\alpha \:\frac{1}{n} \\c=\frac{k}{n}

where k is constant of proportionality

We are given when c = 22.50, n = 20

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First using c = 22.50, n = 20 we will find k, the constant of proportionality

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So, we get the value of c: c = 12.5

Therefore, It will cost $12.5 per person to charter a bus for 36 passengers

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