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otez555 [7]
3 years ago
6

A-1 Taxi charges $12.00 for pick up and an additional $0.15 for each mile traveled. Z-6 Taxi charges $10.00 for pick up and an a

dditional $0.25 for each mile traveled. At what mileage is the cost for both taxi services the same?
Mathematics
2 answers:
zysi [14]3 years ago
9 0

Answer:

20 miles.

Step-by-step explanation:

Let m be the miles traveled by the both Taxi.

Pick up charge of A-1  taxi = $12

Cost of travelling 1 mile = $0.15

Cost of travelling x mile = $0.15x

So, total cost of A-1 taxi = 12+0.15x  --A

Pick up charge of Z-6  taxi = $10

Cost of travelling 1 mile = $0.25

Cost of travelling x mile = $0.25x

So, total cost of Z-6 taxi = 10+0.25x  --B

Now we are supposed to find At what mileage is the cost for both taxi services the same.

So, equate 1 and 2

12+0.15x=10+0.25x

12-10=0.25x-0.15x

2=0.10x

\frac{2}{0.10}=x

20=x

So, the cost for both taxi services will be same at 20 miles.

grigory [225]3 years ago
6 0
12 + 0.15m = 10 + 0.25m
0.15m - 0.25m = 10 - 12
- 0.10m = -2
m = -2/-0.10
m = 20

At 20 miles, the cost of the two taxi services will be the same.
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Ha: Hours of sleep per night is not independent of age.

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The corresponding p-value for the test at χ²= 4.009 is 0.2604

Step-by-step explanation:

1) The null and alternative hypotheses.

H0: Hours of sleep per night is independent of age.

Ha: Hours of sleep per night is not independent of age.

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6.9-7 hours              60              57               117

7- 7.9 hours              79              77               156

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<u />

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{(79 - 74.88)^2}/{ 74.88} = 0.227

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{(65 - 75.36)^2}/{ 75.36} = 1.424

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The p-value for the test at χ²= 4.009 is 0.2604

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