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CaHeK987 [17]
4 years ago
7

Help me plzzzzzzzZzzzzz​

Mathematics
1 answer:
gizmo_the_mogwai [7]4 years ago
8 0

Use order of operations.

-23-20-(-17)+(-5)x(-2)+4x5

Do all multiplication steps.

-23-20-(-17)+10+20

Do all addition and subtraction steps fro left to right.

-43-(-17)+10+20

-26+10+20

-16+20

answer: 4

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Can you please help
ch4aika [34]

Answer:

6 teaspoons

Step-by-step explanation:

he used the double of cups of flour. so the number of tespoons also doubles

3 0
3 years ago
Mr. White is paid a weekly salary of $1,500. How much will he earn in a year?
maria [59]

Answer:

$78,000

Step-by-step explanation:

Because their are 52 weeks in a year and 52 X 1500 is $78,000

4 0
3 years ago
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There are 6 puppies in a litter. Each puppy eats ½ a cup of food three times a day. How many cups of food does the litter go thr
slamgirl [31]

Answer: 9 cups of food

Step-by-step explanation:

First find out the amount of food that one puppy eats per day.

Each puppy eats 0.5 cups of food three times a day which means that in total they eat:

= 0.5 * 3

= 1.5 cups of food.

There are 6 puppies in the litter so the total amount of food they eat is:

= 1.5 * 6 puppies

= 9 cups of food

7 0
3 years ago
Of 375 randomly selected students, 30 said that they planned to work in a rural community. Find 95% confidence interval for the
Artemon [7]

Answer:

The 95% confidence interval for the true proportion of all medical students who plan to work in a rural community is (0.0525, 0.1075).

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 level of 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:

n = 375, \pi = \frac{30}{375} = 0.08

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.08 - 1.96\sqrt{\frac{0.08*0.92}{375}} = 0.0525

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.08 + 1.96\sqrt{\frac{0.08*0.92}{375}} = 0.1075

The 95% confidence interval for the true proportion of all medical students who plan to work in a rural community is (0.0525, 0.1075).

4 0
3 years ago
Twenty-four players divided into three teams?
avanturin [10]
24÷3=8

There will be eight players on each team.
8 0
3 years ago
Read 2 more answers
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