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2 years ago

Michael is buying bagels for a family gathering. Each bagel costs $0.75. Answer the

Mathematics

1 answer:

babunello [35]2 years ago

7 0

Step-by-step explanation:

sorry naka limutan kuna susunod sagotin ko. promise

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Help Review of linear pair vertical and complementary

Lera25 [3.4K]

Answer:

x = 15

Step-by-step explanation:

The two angles form a straight line so they add to 180 degrees

3+6x + 5x+12 = 180

Combine like terms

11x+15 = 180

Subtract 15 from each side

11x+15-15 =180-15

11x = 165

Divide by 11

11x/11 =165/11

x =15

7 0

3 years ago

A store manager paid $95 for an item and set the selling price at $116.85. What was the percent markup?

Neporo4naja [7]

We have been given that a store manager paid $95 for an item and set the selling price at $116.85. We are asked to find the percent mark-up.

We will use percent increase formula to solve our given problem.

$\text{Percent increase}=\frac{\text{Final}-\text{Initial}}{\text{Initial}}\times 100\%$

$\text{Percent increase}=\frac{\$116.85-\$95}{\$95}\times 100\%$

$\text{Percent increase}=\frac{\$21.85}{\$95}\times 100\%$

$\text{Percent increase}=0.23\times 100\%$

$\text{Percent increase}=23\%$

Therefore, the mark-up will be 23% and option 'b' is the correct choice.

6 0

3 years ago

The registration fees for the auto were determined from California's DMV website The registration fee is $182 plus 0.65% of the

dybincka [34]

We have to find 0.65% of 182

$\\ \rm\longmapsto 0.0065\times 182$

$\\ \rm\longmapsto 1.183\$$

Now total fee

$\\ \rm\longmapsto 182+1.183=183.183\$$

3 0

3 years ago

Suppose that replacement times for washing machines are normally distributed with a mean of 9.3 years and a standard deviation o

Harlamova29_29 [7]

Answer:

The probability is 0.0643

Step-by-step explanation:

* Lets revise some definition to solve the problem

- The standard deviation of the distribution of sample means is called σM

- σM = σ/√n , where σ is the standard deviation and n is the sample size

- z-score = (M - μ)/σM, where M is the mean of the sample , μ is the mean

of the population

* Lets solve the problem

- The mean of the washing machine is 9.3 years

∴ μ = 9.3

- The standard deviation is 1.1 years

∴ σ = 1.1

- There are 70 washing machines randomly selected

∴ n = 70

- The mean replacement time less than 9.1 years

∴ M = 9.1

- Lets calculate z-score

∵ σM = σ/√n

∴ σM = 1.1/√70 = 0.1315

∵ z-score = (M - μ)/σM

∴ z-score = (9.1 - 9.3)/0.1315 = - 1.5209

- Use the normal distribution table of z to find P(z < -1.5209)

∴ P(z < -1.5209) = 0.06426

∵ P(M < 9.1) = P(z < -1.5209)

∴ P(M < 9.1) = 0.0643

* The probability is 0.0643

5 0

3 years ago

Please help if need more info comment thank you this is 10 points so please answer correctly

murzikaleks [220]

If mary has to double the size of her garden and he garden is orginally 8 feet...all u do is double 8 which is 16!

7 0

3 years ago