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GREYUIT [131]
3 years ago
6

What is the equation in math N+8=-10

Mathematics
2 answers:
sp2606 [1]3 years ago
4 0

Your answer is...

N = -18

-18 + 8 = -10

dybincka [34]3 years ago
4 0

The objective in this question is to get rid of the 8 on the left. When you do that you will have all the numbers on the right, and all the variables on the left. The equation will be solved. If the solution is not what you want, then be a little bit more careful about how you post a question.

Add 8 to both sides.

n +8 - 8 = - 10 - 8

n = - 18 Think money when you do the question. If you owe 10 dollars and you spend 8 more, you go more and more in debt. That's the same way with this question. You go more and more negative.


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1/4 + 1/2 + x = -3/4<br><br> WHAT IS X
wel

Answer: step by step

Step-by-step explanation:

fraction form: x= -3/2

decimal form: x= -1.5

subtract 1/4 and 1/2 from both sides to find x

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1 year ago
Please help me on this one!
notka56 [123]

Answer:

1.97

Step-by-step explanation:

4.82 - 2.85 = 1.97

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3 years ago
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Marc has 45 Cds in his collection, and Corinna has 61. If Marc buys 4 new CDs each month and Corinna buys 2 new CDs each month,
Mkey [24]

After 8 months they both will have 77 CD's

4 0
3 years ago
Coffee: A popular chain of cafes has been receiving online complaints about one store location. Regular customers complained tha
hammer [34]

Answer:

The test statistic is z=2.5.

The null hypothesis is rejected.

There is enough evidence to support the claim that more than 10% of the 16 ounce cups are underfilled.

Step-by-step explanation:

This is a hypothesis test for a proportion.

The claim is that more than 10% of the 16 ounce cups are underfilled.

Then, the null and alternative hypothesis are:

H_0: \pi=0.1\\\\H_a:\pi>0.1

The significance level is assumed to be 0.05.

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p=X/n=18/100=0.18

The standard error of the proportion is:

\sigma_p=\sqrt{\dfrac{\pi(1-\pi)}{n}}=\sqrt{\dfrac{0.1*0.9}{100}}\\\\\\ \sigma_p=\sqrt{0.001}=0.03

Then, we can calculate the z-statistic as:

z=\dfrac{p-\pi-0.5/n}{\sigma_p}=\dfrac{0.18-0.1-0.5/100}{0.03}=\dfrac{0.075}{0.03}=2.5

This test is a right-tailed test, so the P-value for this test is calculated as:

P-value=P(z>2.5)=0.006

As the P-value (0.006) is smaller than the significance level (0.05), the effect is  significant.

The null hypothesis is rejected.

There is enough evidence to support the claim that more than 10% of the 16 ounce cups are underfilled.

7 0
3 years ago
The original price of a toaster is $18.00. If the toaster is marked down 25%, what is the new price?
Alla [95]

Answer:

$13.50

Step-by-step explanation:

First, we got to multiply $18 by 25% or .25

$18 x .25 = $4.50

Lastly, we just subtract $4.50 from $18.

$18 - $4.50 = $13.50

5 0
3 years ago
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