All categories

3 years ago

Can someone solve this?

Mathematics

1 answer:

gayaneshka [121]3 years ago

6 0

Step-by-step explanation:

you would take 45 and divide it by 3 which would give you what one witch = 15

take 21 divide it by 3 which gives you one wand =7

take the brooms and divide it 12 by 3 one broom = 3

then take the wand(15) and multiply is but the wand (7) =105

take 105 and add the broom too it(4) = 109

so the answer is 109

You might be interested in

Given that X ~ N(120, 35). We survey samples of 25 and are interested in the distribution of X-bar. Find the z-score associated

lubasha [3.4K]

Answer:

Option c -2.8571

Step-by-step explanation:

z-score are calculated as

$z=\frac{xbar-mean}{\frac{S.D}{\sqrt{n} } }$ .

We are given that mean=120 and standard deviation=S.D=35 as X~N(120,35).

Sample size=n=25.

We have to find z-score for x-bar=100. So,

z-score=[100-120]/[35/√25]

z-score=[-20]/[35/5]

z-score=-20/7

z-score=-2.8571.

Thus, the z-score associated with x-bar = 100 is -2.8571.

8 0

3 years ago

Can someone please help me with math?

Fofino [41]

You most likely will win a token. you have the advantage as the most they can win is 1 token if you lose, but you can win 3 tokens.

6 0

3 years ago

Sahir took 1 h 22 min to do his english homework 45 min to do his maths homework, and 10 min to do his urdu. How long did he tak

andre [41]

Answer:

2 hr and 17 minutes

Step-by-step explanation:

add 45 to 10+= 55

55+ 1 hr 22 = 1 hour and 77 minutes which converts to:

2 hour and 17 minutes

good luck!

6 0

3 years ago

No work needed, just the answer!

bezimeni [28]

Answer:

The answer to your question is: x = - 102

Step-by-step explanation:

$- \frac{x}{6} + 1 = 18$

$- \frac{x}{6} = 18 - 1$

$- \frac{x}{6} = 17$

-x = 17 x 6

-x = 102

x = -102

5 0

3 years ago

The measurement of the height of 600 students of a college is normally distributed with a mean of

ioda

Answer:

Step-by-step explanation:

We let the random variable X denote the height of students of the college. Therefore, X is normally distributed with a mean of 175 cm and a standard deviation of 5 centimeters.

We are required to determine the percent of students who are between 170 centimeters and 180 centimeters in height.

This can be expressed as;

P(170<X<180)

This can be evaluated in Stat-Crunch using the following steps;

In stat crunch, click Stat then Calculators and select Normal

In the pop-up window that appears click Between

Input the value of the mean as 175 and that of the standard deviation as 5

Then input the values 170 and 180

click compute

Stat-Crunch returns a probability of approximately 68%

5 0

3 years ago

Can someone solve this?​

Can someone solve this?