Two cars got an oil change at the same auto shop. The shop charges customers for each quart of oil plus a flat fee for labor. The oil change for one car required 5 quarts of oil and cost $22.15. The oil change for the other car required 7 quarts of oil and cost $25.15. How much is the labor fee and how much is each quart of oil?

Answers

Answer 1
Answer:

Answer:

Labor = $14.65

Step-by-step explanation:

25.15-22.15= 3      3/2 = 1.5

1qt = $1.5

1.5 x 5 = $7.5

22.15 - 7.5 = $14.65

1.5 x 7 = 10.5

25.15 - 10.5 = $14.65

Labor = $14.65


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A study was conducted to estimate the mean amount spent on Christmas gifts for a typical family having two children. A sample of size of 101 was taken and the mean amount spent was $225 with astandard deviation equal to $50. Find a 95% confidence interval for the mean for all such families. Round to the nearest whole dollar.The confidence interval is from(Do not enter dollar signs.)

Miguel bought a bicycle at a 30% discount. he paid $122.50. what percent of the original price did Miguel pay​

Answers

70%

100% - 30% = 70%

The price is not needed

Final answer:

Miguel paid 70% of the original price for the bicycle. The original price was calculated as approximately $175 by dividing the price Miguel paid ($122.50) by 70% (the remaining percentage after the 30% discount).

Explanation:

Miguel paid $122.50 for a bicycle which was discounted by 30%. So, the $122.50 represents the 70% of the original price (because 100% - 30% = 70%). To find out what 100% (the original price) is, we need to perform a calculation where we divide the price paid by Miguel ($122.50) by 70% (in decimal format, that's 0.70).

The formula would structure as below:

Original Price = Price Paid / Percentage of Original Price Paid

Substituting in the values provided, the equation would be:

Original Price = $122.50 / 0.70

Following through with this calculation, we find that the original price of the bicycle was approximately $175. Therefore, Miguel paid 70% of the original price, as that's the remaining percentage after the 30% discount.

Learn more about Discount here:

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What is the value of (2^4) ^3 divided by 2^6

Answers

Answer:64

Step-by-step explanation:

2*2*2*2=4*4=16. 16*16*16=4,096. 2*2*2*2*2*2=4*4*4=64. 4,096/64=64.

What is the equation of the line that has a gradient of 3 and passes through the point (-1,3)

Answers

Answer:

d

Step-by-step explanation:

What is 6=- x/8
Plz help

Answers

Answer:

1 .Multiply both sides by 88.

6\times 8=-x6×8=−x

2 .Simplify  6\times 86×8  to  4848.

48=-x48=−x

3. Multiply both sides by -1−1.

-48=x−48=x

4. x=−48

Step-by-step explanation:

Penny reads 13 pages in 1/2 hour. What is the unit rate for pages per hour? For hours per page? How many hours per page

Answers

Answer:

13 pages : 1/2 hour Multiply both sides by 2

26 pages : 1 hour ------>> 26 pages/hr

Flip over 26 pages/hr ----->>> hr / 26 pages = 1 hr / 26 pages

Split up the fraction: (1/26) hr / page

Answer:

26

Step-by-step explanation:

13 in 1/2 hour

13:1/2

26:1

Your grandmother always has a jar of cookies on her counter. One day while you are visiting you eat 5 cookies from the jar. In the equation below, c is the number of cookies remaining in the jar and b is the number of cookies in the jar before your visit. The relationship between these two variables can be expressed by the following equation: c=b-5

Answers

Answer:

So, As You Could See In The Equation C=B-5. C, Which Is The Number Of Cookies Left In The Jar. Is What They Are Trying To Solve For.

Always Remeber Dependant Variable Is What Were Observing, And Independant Variable Is What Were Changing.

So, In This Case C Is The Dependant Variable, And B Is The Independant Variable.

I Hoped This Helped!



Answer:

C is dependent, B is independent

Step-by-step explanation:

The dependent variable is the number that is affected when you change the independent variable—it depends on the independent variable.

Does the number of cookies remaining in the jar depend on the number of cookies in the jar before your visit, or does the number of cookies in the jar before your visit depend on the number of cookies remaining in the jar.

The number of cookies remaining in the jar depends on the number of cookies in the jar before your visit. Therefore, the number of cookies remaining in the jar is the dependent variable, and the number of cookies in the jar before your visit is the independent variable.

Therefore, C is the dependant variable, and B is the independant variable.

Hope this helps! <3