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Kisachek [45]
3 years ago
5

Nancy’s van traveled 84 miles on 6.5 gallons of gas. At this rate, how many gallons of gas would be needed to travel 126 miles?

Mathematics
1 answer:
nikklg [1K]3 years ago
4 0
126/84=1.5
1.5*6.5=9.75
9.75 gallons of gas are needed to travel 126 miles.
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Is -2.75 greater than or less than -2.5
Alex

-2.75 is less then -2.5 or -2.50. For negatives only, if the number is less it is greater, and if a number is greater it is less.

Brainliest please!

3 0
3 years ago
Ethan throws a ball into the air from a cliff that is 152.4 m high with an initial velocity of 4 m/s. How long does it take for
Dmitry_Shevchenko [17]
38.1 seconds I believe simply divide 4m/s into 152.4 m and you will have 38.1 seconds
8 0
3 years ago
Read 2 more answers
Find the slope of the line that passes through (3, 11) and (10, 6).
igomit [66]

Answer:

-5/7

Step-by-step explanation:

remember slope is eqaul to rise over run.

6-11 = -5 so it rose down by 5 units

10 - 3 = 7 so it ran 7 units

thus

slope= -5/7

5 0
2 years ago
A geologist examines 14 geological samples for iron concentration. The mean iron concentration for the sample data is 0.181 cc/c
kykrilka [37]

Answer:

The 90% confidence interval for the population mean iron concentration is between 0.167 cc/m³ and 0.195 cc/m³.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.9}{2} = 0.05

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.05 = 0.95, so z = 1.645

Now, find M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.645*\frac{0.0318}{\sqrt{14}} = 0.0140

The lower end of the interval is the sample mean subtracted by M. So it is 0.181 - 0.0140 = 0.167 cc/m³.

The upper end of the interval is the sample mean added to M. So it is 0.181 + 0.0140 = 0.195 cc/m³.

The 90% confidence interval for the population mean iron concentration is between 0.167 cc/m³ and 0.195 cc/m³.

3 0
3 years ago
Plzz answer this as soon as possible! The graph shows the number of miles two cars travel.
Solnce55 [7]
The answer is 15

From the graph:
Car A traveled 60 miles in one hour
Car B traveled 75 miles in one hour.

Car B travels 15 more miles per hour
3 0
3 years ago
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