3 years ago

When 1/2 of the number N is decrease by four, the result is -6. What is three times N added to seven?

SAT

1 answer:

Degger [83]3 years ago

5 0

Answer:

Explanation:

Word problem.

First statememt

n/2 - 4 = -6. ....... (1)

Second statement.

3n + 7 = x. ....... (2)

From (1)

n/2 - 4 = -6.

n/2 = -6 +4

n/2 = -2

n= -4

Put n into (2).

3n + 7 = x

3(-4) +7 = x

x= -12 +7 = -5

The answer is -5.

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Makovka662 [10]

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3 0

3 years ago

Read 2 more answers

A bottle holds 255 milliliters of shampoo. How many liters will 32 bottles hold? 816 liters 8.16 liters 8,160 liters 81.6 liters

Dafna1 [17]

Answer:

The Answer is 816 liters

Explanation:

255 x 32= 8160 milliliters

8160 milliliters is equal to 8.16 liters

4 0

3 years ago

15. For a random sample of n = 64, find the probability of a sample mean being

mart [117]

Answer:

0.9726

Explanation:

The computation of the probability of a sample mean is shown below:

$P(\bar x < 24.3)$

To find the probability first we have to determine the z score which is

$z = \frac{\bar x - \mu_{\bar x}}{\sigma_{\bar x}} \\\\ = \frac{\bar x - \mu }{\frac{\sigma}{\sqrt{n} } } \\\\ = \frac{24.3 - 24}{\frac{1.25}{\sqrt{64} } }$

= 1.92

Now probability is

$P(\bar x < 24.3) \\\\= P(z < 1.92)$

= 0.9726

Hence, the probability of the sample mean is 0.9726

We simply applied the above formulas to determined the probability of a sample mean and the same is to be considered

6 0

3 years ago

Expain 5 factors that can slow down<br> the growth of democracy in Nigeria

VMariaS [17]

Answer:

hmm I think is Salam or lukira

3 0

3 years ago

A force of 30 n stretches a very light ideal spring 0. 73 m from equilibrium. What is the force constant (spring constant) of th

Rainbow [258]

According to Hooke's law, a 30-N force stretches a spring by 0.73 m if the spring constant k is such that

30 N = k (0.73 m)

k = (30 N) / (0.73 m)

k ≈ 4.1 N/m

3 0

3 years ago