1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ICE Princess25 [194]
3 years ago
12

At the market, 7 apples cost $4.55. How much do 9 apples cost?

Mathematics
2 answers:
Dvinal [7]3 years ago
6 0
7 apples = 4.55
To find the single cost of an apple, divide 4.55 by 7
4.55/7 = 0.65 per apple
Let's check to see if this is right.
0.65 x 7 = 4.55 = correct
0.65 x 9 = $5.85 for 9 apples

Keith_Richards [23]3 years ago
6 0
From the given data, the cost of the apple in the market is equal to $4.55 / 7 apple equal to $0.65 per apple. IN this case, to get the total cost of 9 apples is determined by multiplying the apple cost and the number of apples. The answer to this problem is $5.85
You might be interested in
If there’s 40 students and 55% students passed.<br> What number of students passed
OlgaM077 [116]

Answer:

22

Step-by-step explanation:

40x.55=22

5 0
3 years ago
24 times 4 tons 2 pounds
Iteru [2.4K]
Ayy, so your question is kinda weirdly worded. But I think your asking what is 24 multiplied by 4 tons and 2 pounds.

Well, 2 pounds is equal to 0.00090718 tons.
There is a converter here: https://www.bing.com/search?q=pounds+to+tons&qs=AS&pq=pounds+to+tons&sc=8-14&sp=1&cvid=7BC591B75A8B4......

But now we have 0.00090718 tons as well as 4 tons. Add those together and you get 4.00090718. Now, multiply this by 24. You get: 96.02177232.


7 0
3 years ago
Need help with this
stira [4]

Answer: 5,356 is the right asnwer

Step-by-step explanation: I did the paper hope this helps :)

6 0
2 years ago
. Which algebraic expression is equivalent to the expression below?
I am Lyosha [343]
Since you are not distributing at all, you can ignore the parenthesis :)

When ignoring the parenthesis your equation is
18x + 11 - 4x

Then just combine like terms :)

14x + 11

Your answer is C.

Hope this helped!


5 0
3 years ago
Suppose a local manufacturing company claims their production line has a variance of less than 9.0. A quality control engineer d
Alexxx [7]

Answer:

\chi^2 =\frac{35-1}{9} 2.12^2 =16.979

p_v =P(\chi^2

If we compare the p value and the significance level provided we see that p_v so on this case we have enough evidence in order to reject the null hypothesis at the significance level provided. And that means that the population variance is significantly lower than 9

Step-by-step explanation:

Notation and previous concepts

A chi-square test is "used to test if the variance of a population is equal to a specified value. This test can be either a two-sided test or a one-sided test. The two-sided version tests against the alternative that the true variance is either less than or greater than the specified value"

n=35 represent the sample size

\alpha=0.01 represent the confidence level  

s =2.12 represent the sample deviation obtained

\sigma_0 =3 represent the value that we want to test

Null and alternative hypothesis

On this case we want to check if the population variance specification is lower than 9 and the deviation lower than 3, so the system of hypothesis would be:

Null Hypothesis: \sigma^2 \geq 9

Alternative hypothesis: \sigma^2

Calculate the statistic  

For this test we can use the following statistic:

\chi^2 =\frac{n-1}{\sigma^2_0} s^2

And this statistic is distributed chi square with n-1 degrees of freedom. We have eveything to replace.

\chi^2 =\frac{35-1}{9} 2.12^2 =16.979

Calculate the p value

In order to calculate the p value we need to have in count the degrees of freedom , on this case df= n-1= 35-1=34. And since is a left tailed test the p value would be given by:

p_v =P(\chi^2

In order to find the p value we can use the following code in excel:

"=CHISQ.DIST(16.979,34,TRUE)"

Conclusion

If we compare the p value and the significance level provided we see that p_v so on this case we have enough evidence in order to reject the null hypothesis at the significance level provided. And that means that the population variance is significantly lower than 9

6 0
3 years ago
Other questions:
  • Isosceles triangle ABC has a perimeter of 96 centimeters. The base of the triangle is and measures 24 centimeters. What is the m
    12·1 answer
  • Shawn downloads movies at a base price of $2 per movie. If he downloads 5 movies, he will get a 25% discount. How much will Shaw
    10·1 answer
  • Which is a solution to (x - 2)(x + 10) = 13 ?
    11·2 answers
  • The amount of tax for another camera is $5.25 and the tax rate is 6%. Use the given equation to find the price before tax.
    8·2 answers
  • Devante and Bradley leave their apartment to go to a football game 72 miles away. Devante drives his car 9 mph faster than Bradl
    14·1 answer
  • A town has a population of 4000 and grows at 3.5% every year. To the nearest year, how long will it be until the population will
    11·1 answer
  • What is the slope of the line that contains the points (4, -1) and (-1, 4)?
    6·1 answer
  • The phases of the moon are caused by:
    12·2 answers
  • The Coffee Cafe has cans of coffee that weigh 3 1/4 pounds each. The Cafe has 8 1/2 cans of coffee left. What is the total weigh
    12·2 answers
  • If a can of soup contains 12.0 ounces (oz) of soup, how many grams of soup is that, in proper significant
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!