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snow_lady [41]
3 years ago
13

dev knows he only has 8gallons of gasoline in the tank. he wants to go on a 300- mile trip. will he have to buy more gasoline? a

lso for 4 gallons of gasoline it was 128 miles
Mathematics
2 answers:
max2010maxim [7]3 years ago
6 0
Yes you will need more gassoline
Darya [45]3 years ago
3 0
4 gallons=128
times 2
8 gallons=256

300-256=44

44 miles needed more

find mpg
4gal=128
divide by 4 both sides
1gal=32 miles

44/32=1.375

he needs 1.375 more gallons
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7.1.35-T Question Help You are the operations manager for an airline and you are considering a higher fare level for passengers
shusha [124]

Answer:

You must survey 784 air passengers.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

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Within 3.5 percentage points of the true population percentage.

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8 0
2 years ago
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3 years ago
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