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3 years ago

Need help asap will give brainly

Mathematics

1 answer:

Nookie1986 [14]3 years ago

6 0

1, X = 6
2, X = 13
3, X = 9

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I think the answer is C) 4x=12 but I am not sure. Please help and explain!!

Dmitriy789 [7]

You are correct, C) 4x = 12.

So, if 4 people are eating 12 pieces of pizza, simply divide 12 by 4 and there's your answer!

12 / 4 = 3 Each person gets 3 slices of pizza.

8 0

4 years ago

Solve 1.25x + 1.50y = 28.25.

fiasKO [112]

To find the x-intercept, substitute in

for

and solve for

. To find the y-intercept, substitute in

for

and solve for

x-intercept(s):

(

22.6

)

(

22.6

)

y-intercept(s):

(

18.8

)

4 0

3 years ago

The heights of a random sample of 100 women are recorded. The sample mean is 65.3 inches and the sample standard deviation is 3

Keith_Richards [23]

Answer: B. $65.3\pm(2)(0.3)$

Step-by-step explanation:

The confidence interval for the population mean is given by :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

Given : Sample size : n= 100

Sample mean : $\overline{x}=65.3\text{ inches}$

Standard deviation: $\sigma=3 \text{ inches}$

Level of confidence = 0.95

Significance level : $\alpha=1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.96$

Then, 95% confidence interval for the population mean will be :-

$65.3\pm (1.96)\dfrac{3}{\sqrt{100}}\\\\\approx65.3\pm(2)(\dfrac{3}{10})=65.3\pm(2)(0.3)$

8 0

3 years ago

Read 2 more answers

Please Explain how it happens

diamong [38]

Answer:

Step-by-step explanation:

$LHS = \frac{\alpha +\beta }{\alpha \beta }\\\\=\frac{\alpha }{\alpha \beta }+\frac{\beta }{\alpha \beta }\\\\=\frac{1}{\beta }+\frac{1}{\alpha }$

Use KCF method for fraction division

Keep the first fraction, Change division to multiplication and filp the second fraction

$RHS = \frac{\frac{18}{p}}{\frac{9}{p}}\\\\$

= $\frac{18}{p}$ ÷ $\frac{9}{p}$

$= \frac{18}{p}*\frac{p}{9}\\\\=\frac{18}{9}$

3 0

3 years ago

Jackson is flying at a constant rate of 500 mph from New York, New York, to Austin, Texas, which is a distance of 1,750 miles. I

dexar [7]

Sent a picture of the solution to the problem (s).

6 0

3 years ago