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mario62 [17]
3 years ago
5

Mrs.Johnsons new car has an 18 gallon gas tank. If she can travel 400 miles on one tank of gasoline, what is her miles per gallo

n rate to the nearest whole number
Mathematics
1 answer:
serious [3.7K]3 years ago
5 0

Answer:

22

Step-by-step explanation:

400/18=22.222222222

Round to 22

You might be interested in
hello i was trying to get the understanding on how is 4-6+6=4,,,,,,,my answer (4-6=2+6=8) but me being in high school i know its
frozen [14]
Thanks for the question!

4 - 6 + 6

We can make this easier by doing it one step at a time. First, lets do 4 - 6.

4 - 6 + 6
-2 + 6

Now, solve:

-2 + 6
4

Hope this helps!
6 0
3 years ago
Suppose you read online that children first count to 10 successfully when they are 32 months old, on average. You perform a hypo
creativ13 [48]

Answer:

p_v =2*P(t_{(35)}  

Step-by-step explanation:

Assuming this info from R

hist(gifted$count)

##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max.  

##   21.00   28.00   31.00   30.69   34.25   39.00

## Sd

## [1] 4.314887

Data given and notation  

\bar X=30.69 represent the mean  

s=4.3149 represent the sample standard deviation

n=36 sample size  

\mu_o =32 represent the value that we want to test

\alpha represent the significance level for the hypothesis test.  

t would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the mean is different than 32, the system of hypothesis would be:  

Null hypothesis:\mu = 32  

Alternative hypothesis:\mu \neq 32  

If we analyze the size for the sample is > 30 but we don't know the population deviation so is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:  

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

Calculate the statistic

We can replace in formula (1) the info given like this:  

t=\frac{30.69-32}{\frac{4.3149}{\sqrt{36}}}=-1.822    

P-value

The first step is calculate the degrees of freedom, on this case:  

df=n-1=36-1=35  

Since is a two sided test the p value would be:  

p_v =2*P(t_{(35)}  

7 0
3 years ago
Use the point-slope formula to write an equation of the line that passes through (4,10) and has a slope of m= 3. Write the
baherus [9]
Answer:
3x --y -2= 0
Step-by-step explanation:
We have formula Y - y 1 = m ( X --x1) => Y - 10 = 3(X-4)
3X - Y - 2 = 0 Ans .


4 0
2 years ago
The next number in the pattern 1 5 25 125 625
chubhunter [2.5K]
5⁰ = 1
5¹ = 5
5² = 25
5³ = 125
5⁴ = 625
5⁵ = 3125
5 0
3 years ago
What are the similarities and differences between comparing whole numbers and decimals
Helga [31]
There both types of numbers but a whole number is a number with no exponents or decimals, but decimals are like a broken un half whole number
3 0
3 years ago
Read 2 more answers
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