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Nutka1998 [239]
3 years ago
7

If Tara spends $219 a month for her car payment and she makes $3,200 a month, what percent of her monthly income is spent on her

car payment? A. 8.6% B. 680% C. 6.8% D. .68%
Mathematics
2 answers:
suter [353]3 years ago
7 0
<span> D. .68%................</span>
eimsori [14]3 years ago
3 0
$219/$3200 x100% = 8.6%

The answer is C :)
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What is the ratio of chicks to dogs? Answer in fraction form.
Georgia [21]

Answer:

The ratio of cats to dogs is 2:1 The ratio of dogs to cats is 1:2 or half as many dogs as cats. There are six cats and three dogs.

Step-by-step explanation:

one and two

4 0
2 years ago
John works 6 hours a day and earns $150.00. Peter works 8 hours a day and earns $160.00. Who earns more money per hour?(think un
Zanzabum

Step-by-step explanation:

<u>John</u>

1hour=x

6x=150

X=150÷6=25

John earns 25 dollars per hour

<u>Peter</u>

<u>1hour=x </u>

<u>8</u><u>x=</u><u>160</u>

<u>X=</u><u>160</u><u>÷</u><u>8</u><u>=</u><u>20</u><u> </u>

  • Peter earns less than <u>John</u><u> </u>
6 0
3 years ago
A tobacco company claims that its best-selling cigarettes contain at most 40 mg of nicotine. The average nicotine content from a
tatuchka [14]

Answer:

t=\frac{42.6-40}{\frac{3.7}{\sqrt{15}}}=2.722    

df=n-1=15-1=14  

p_v =P(t_{(14)}>2.722)=0.0083  

We see that the p value is lower than the significance level given of 0.01 so then we can conclude that the true mean for the nicotine content is significantly higher than 40 mg

Step-by-step explanation:

Information provided

\bar X=42.6 represent the average nicotine content

s=3.7 represent the sample standard deviation

n=15 sample size  

\mu_o =40 represent the value to check

\alpha=0.01 represent the significance level for the hypothesis test.  

t would represent the statistic

p_v represent the p value for the test

System of hypothesis

We want to verify if the nicotine content of the cigarettes exceeds 40 mg , the system of hypothesis are:  

Null hypothesis:\mu \leq 40  

Alternative hypothesis:\mu > 40  

The statistic for this case would be:

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

And replcing we got:

t=\frac{42.6-40}{\frac{3.7}{\sqrt{15}}}=2.722    

The degrees of freedom are:

df=n-1=15-1=14  

The p value would be:

p_v =P(t_{(14)}>2.722)=0.0083  

We see that the p value is lower than the significance level given of 0.01 so then we can conclude that the true mean for the nicotine content is significantly higher than 40 mg

6 0
3 years ago
Which ratio expresses the scale used to create this drawing? The camping site has dimensions of 12 meters by 48 meters. A. B. C.
Stella [2.4K]

Answer:

1: 4

Step-by-step explanation:

to find the ratio

12: 48

divide by the both sides, ththus the answer is 1: 4.

3 0
2 years ago
How to find the slope from a table of data
sammy [17]

The slope of a linear line (or a linear equation) can be found by simply taking 2 values for x and y and then using the slope formula which is \frac{dy}{dx} or:

\frac{y_{2} - y_{1}}{x_{2} - x_{1}}

Example:

Let's say you're give this table:

x: 1, 2

y: 1, 2

Following the steps which I gave, you take 1 value for the y (preferably the larger one) which in this cause will be 2 and then another y from the table which would be 1

Do the same for x

Now plug the values taken in the slope formula and you get:

\frac{2 - 1}{2 - 1}

\frac{1}{1} = 1

Therefore the slope is 1.

6 0
2 years ago
Read 2 more answers
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