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ra1l [238]
2 years ago
12

Tim's mom filled the gas tank in her SUV and spent $72.00 for 22.5 gallons of gasoline .what is the constant of proportionality

that relates the cost in dollars ,y, to the number of gallons of gas,x
A.$0.31 per gallon

B.$3.13 per gallon

C.$3.20 per gallon

D.$0.32 per gallon
Mathematics
1 answer:
MArishka [77]2 years ago
5 0

Answer:

itś c

Step-by-step explanation: because you divide 72.00/22.5= 3.2

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If the Alexanders completed the 735 mile trip in 15 hours, what was their average rate of travel?
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The rate of travel here is in mph - "miles per hour".

That just means how many miles you can travel in one hour. In this problem, you're given 15 hours, and the distance they travel within those 15 hours.

Therefore, you should divide both the number of miles and the number of hours by 15 to find out how far they can travel in 1 hour.

735 ÷ 15 = 49 miles
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Their average rate of travel was 49 miles in 1 hour, which is 49 mph.

6 0
3 years ago
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HELPPP ACELLUS ALGEBRA 2<br> Divide.<br> 3x^3 + 2x^2 – 3x + 54<br> /x + 3
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Answer:

The answer is 5

Step-by-step explanation:

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2 years ago
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-7 2/3 + (-5 1/2 ) + 8 3/4
Tanzania [10]

Answer:131/12

Step-by-step explanation:

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2 years ago
a study timed left-handed and right-handed people to see how long it took them to hit a buzzer. the data is shown below: the six
Effectus [21]

The z or t score to be used is  (0.422,0.978)

How to find the critical value ?

Critical probability (p*) = 1 - (Alpha / 2), where Alpha is equal to 1 - (the confidence level / 100), is the unit statisticians use to determine the margin of error within a set of data in statistics.

The critical value for α = 0.13 is z_{c} = \frac{z_{1} - \alpha }{2}

The corresponding confidence interval is computed as shown below

CI = (X1_{1}  - X_{2}- z_{c} \sqrt{\frac{a_{1}^{2}}{n_{1} } + \frac{a_{2}^{2}}{n_{2} }}  ,  X1_{1}  - X_{2}+z_{c} \sqrt{\frac{a_{1}^{2}}{n_{1} } + \frac{a_{2}^{2}}{n_{2} }}  )

CI = (2.1 - 1.4- 1.514\sqrt{\frac{1^{2}}{37 } + \frac{0.5_{2}^{2}}{38 }}  ,  2.1  - 1.4 + 1.514 \sqrt{\frac{1^{2}}{37 } + \frac{0.5^{2}}{38 }}  )

CI = (0.422, 0.978)

0.422< mu1 - mu 2 < 0.978

To learn more about finding the critical value from the given link  

brainly.com/question/14040224

#SPJ4

8 0
1 year ago
Fibonacci posed the following problem: Suppose that rabbits live forever and that every month each pair produces a new pair whic
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Answer:

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f_1 = f_2 = 1,f_n = f_n-1 + f_n-2 for any natural n  \geq 3.  

5 0
3 years ago
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