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2 years ago

A maintenance company charges an office owner $1,800 to clean 5 of his machines. How many should he charge to fix 3 machines?

Mathematics

1 answer:

Tems11 [23]2 years ago

5 0

Answer:

$1080

Step-by-step explanation:

Take 1800 and put it over 5, like a fraction and solve to make the denominator 1. Then multiply by three because we are looking for the cost of 3 machines

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Y = 2(6 + 1) + 5(3 + 2)

never [62]

Step-by-step explanation:

According to PEMDAS parentheses are first.

2(6+1) can be simplified to 12+2.

5(3+2) can be simplified to 15+10

Add these two together.

12+2+15+10

14+15+10

29+10

y=39

Note - when you have something like this in math 2(6+1) it means you need to do 2 x 6 and 2 x 1

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1 year ago

There are 6 people in a room. Each person shakes hands once. How many handshakes will there be?

Yuliya22 [10]

Answer:

Step-by-step explanation:

You have already asked this type of question. so now you know how to do this.

6 persons means he shook his hand with 5 people.

like wise add all handshakes

5+4+3+2+1= 15 handshakes

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3 years ago

The perimeter of the patio is 32m. the garden itself is a square shape. what is the total area of the garden and the patio?

melamori03 [73]

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2 years ago

Read 2 more answers

You have a bag of bubble gum containing six grape, nine sour apple and five regular flavored pieces. You randomly pick one piece

kipiarov [429]

1/8 I think but I am not 100% sure

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3 years ago

From a July 2019 survey of 1186 randomly selected Americans ages 18-29, it was discovered that 248 of them vaped (used an e-ciga

jasenka [17]

Answer:

The 90% confidence interval is (0.1897, 0.2285).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence interval $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

Z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$

For this problem, we have that:

From a July 2019 survey of 1186 randomly selected Americans ages 18-29, it was discovered that 248 of them vaped (used an e-cigarette) in the past week. This means that $n = 1186, \pi = \frac{248}{1186} = 0.2091$

Construct a 90% confidence interval to estimate the population proportion of Americans age 18-29 who vaped in the past week.

So $\alpha = 0.10$ , z is the value of Z that has a pvalue of $1 - \frac{0.10}{2} = 0.95$ , so $z = 1.645$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2091 - 1.645\sqrt{\frac{0.2091*0.7909}{1186}} = 0.1897$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2091 + 1.645\sqrt{\frac{0.2091*0.7909}= 0.2285$

The 90% confidence interval is (0.1897, 0.2285).

3 0

3 years ago

A maintenance company charges an office owner $1,800 to clean 5 of his machines. How many should he charge to fix 3 machines?​

A maintenance company charges an office owner $1,800 to clean 5 of his machines. How many should he charge to fix 3 machines?