All categories

3 years ago

Nancy has nine books and she has read 8 total books Sally has two times more books the Nancy how many books does Sally have

Mathematics

1 answer:

ankoles [38]3 years ago

7 0

Sally has eight-teen books.

You might be interested in

A number cube has the numbers

kogti [31]

Answer:

that is based on luck u could get 5 everytime or none, depends on what roll

7 0

3 years ago

<img src="https://tex.z-dn.net/?f=10%5Csqrt12%20%2B4%5Csqrt%7B192" id="TexFormula1" title="10\sqrt12 +4\sqrt{192" alt="10\sqrt12

crimeas [40]

Here's the answer :)

5 0

3 years ago

Emilio asked his aunt for $20 to buy supplies for his lemonade stand. Once his stand opened he made $40 a day

FrozenT [24]

The equation that represents profit is $40x - $20.

The profit after 5 days in business is $180.

The profit after 10 days in business is $380.

The profit after 10 days in business if revenue is $45 is $430.

<h3>What is profit? </h3>

Profit is total revenue less total cost.

Profit = total revenue - total cost

Profit = $40x - $20

Where:

x = number of days

<h3>What is the total profit after 5 days and 10 days? </h3>

$40(5) - $20

= $200 - $20

= $180

$40(10) - $20

$400 - $20

$380

<h3>What is total profit if revenue is $45? </h3>

$45(10) - $20

= $450 - $20

= $430

To learn more about profit, please check: brainly.com/question/26181966

8 0

2 years ago

Name

miv72 [106K]

Hggyuihdsryui um sorry but I dont no

8 0

3 years ago

In a study of computer use, 1000 randomly selected Canadian Internet users were asked how much time they spend using the Interne

Dvinal [7]

Answer:

b. Do not reject H0. We do not have convincing evidence that the mean weekly time spent using the Internet by Canadians is greater than 12.7 hours.

Step-by-step explanation:

Given that in a study of computer use, 1000 randomly selected Canadian Internet users were asked how much time they spend using the Internet in a typical week. The mean of the sample observations was 12.9 hours.

$H_0: \bar x =12.7\\H_a: \bar x >12,7$

(Right tailed test at 5% level)

Mean difference = 0.2

Std error = $\frac{6}{\sqrt{1000} } \\=0.1897$

Z statistic = 1.0540

p value = 0.145941

since p >alpha we do not reject H0.

b. Do not reject H0. We do not have convincing evidence that the mean weekly time spent using the Internet by Canadians is greater than 12.7 hours.

5 0

3 years ago