Ask question

Ask question

All categories

AlladinOne [14]

4 years ago

9

Jim has three times as many comic books as Charles.Charles has 2\3 as many books as Bob.Bib has 27 books. How many comic books d

oes Jim have?

1 answer:

Harman [31]4 years ago

5 0

He has 54 books jim 54 is the nswer

You might be interested in

What is the product of the rational expressions below? 4x/x+6 /times x-8/x-6

Soloha48 [4]

Answer:

D

Step-by-step explanation:

Multiply the numerators together to get the overall numerator and multiply the denominators together to get the overall denominator. I hope this helps!

5 0

3 years ago

Consider the line y = x – 4. A line parallel to the graph of the line would have a slope of 1 . A line perpendicular to the grap

aivan3 [116]

Answer

-1

Solution

Think this is the answer

7 0

3 years ago

A researcher surveyed 150 high school students and found that 68% played a musical insturment. What would be a reasonable range

maria [59]

Answer:

The reasonable range for the population mean is (61%, 75%).

Step-by-step explanation:

The interval estimate of a population parameter is an interval of values that consist of the values within which the true value of the parameter lies with a certain probability.

The mean of the sampling distribution of sample proportion is, $\hat p$ .

One of the best interval estimate of population proportion is the 95% confidence interval for proportion,

$CI=\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}$

Given:

n = 150

$\hat p$ = 0.68

The critical value of <em>z</em> for 95% confidence level is:

$z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96$

Compute the 95% confidence interval for proportion as follows:

$CI=\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}$

$=0.68\pm1.96\sqrt{\frac{0.68(1-0.68)}{150}}\\\\=0.68\pm 0.0747\\\\=(0.6053, 0.7547)\\\\\approx (0.61, 0.75)$

Thus, the reasonable range for the population mean is (61%, 75%).

5 0

4 years ago

A _____________ is a three-dimensional form that has length and width but minimum thickness.

ira [324]

A plane is a three-dimensional form that has length and width by minimum thickness.

8 0

3 years ago

Two functions, f and g, are represented by these function machines.

Gennadij [26K]

Answer:

x = -2

Step-by-step explanation:

Since we know they will have the same output, we can set them equal to each other in an equation. We'll use x to represent the input.

3x + 6 = 8(x + 2) (Given)

3x + 6 = 8x + 16 (Distributed the 8)

6 = 5x + 16 (Subtracted 3x on both sides)

-10 = 5x (Subtracted 16 on both sides)

-2 = x (Divided 5 on both sides)

7 0

3 years ago