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3 years ago

Help mee

Mathematics

1 answer:

Rina8888 [55]3 years ago

4 0

Answer:

a percent is a variable of proportionality describing the part of the whole.

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Gavin has 4 cups of mini cookies. He pours all of the mini cookies into 5 bowls so that each bowl has an equal amount.

alexandr1967 [171]

Answer:

4/5 cup

Step-by-step explanation:

Since he is putting an equal amount in each bowl, we can find the amount in each bowl by dividing 4 by 5.

This gets us 4/5

So, in each bowl, there is 4/5 of a cup of mini cookies

5 0

3 years ago

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Football team had scores of 23, 15, 11, 29, and 17 in the last five games the team played. Which score is NOT a prime number?

exis [7]

Answer:

Step-by-step explanation:

15 is 5 * 3 so is not prime.

3 0

3 years ago

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The Blazers hockey team has won 7 of its first 12 games.

Step2247 [10]

Answer:

The Rockets' team has the better record.

Step-by-step explanation:

The Blazers hockey team has played 12 games but they won only 7 out of the 12 games, so that means that they loss the other 5 games. So that makes the Blazers record 7 wins and 5 losses.

The Rockets' team has played 8 games but they won only 5 out of the 8 games, so that means that they loss the other 3 games. So that makes the Rockets' record 5 wins and 3 losses.

So, the Rockets' team has the better record because they loss less games than the Blazers team did.

4 0

3 years ago

What is the anwser to the math problem

Mariulka [41]

Answer:

whats the problem

Step-by-step explanation:

4 0

4 years ago

In a completely randomized experimental design, three brands of paper towels were tested for their ability to absorb water. Equa

arlik [135]

Answer:

Yes. At this significance level, there is evidence to support the claim that there is a difference in the ability of the brands to absorb water.

Step-by-step explanation:

The question is incomplete:

The significance level is 0.05.

The data is:

Brand X: 91, 100, 88, 89

Brand Y: 99, 96, 94, 99

Brand Z: 83, 88, 89, 76

We have to check if there is a significant difference between the absorbency rating of each brand.

Null hypothesis: all means are equal

$H_0:\mu_x=\mu_y=\mu_z$

Alternative hypothesis: the means are not equal

$H_a: \mu_x\neq\mu_y\neq\mu_z$

We have to apply a one-way ANOVA

We start by calculating the standard deviation for each brand:

$s_x^2=30,\,\,s_y^2=6,\,\,s_z^2=35.33$

Then, we calculate the mean standard error (MSE):

$MSE=(\sum s_i^2)/a=(30+6+35.33)/3=71.33/3=23.78$

Now, we calculate the mean square between (MSB), but we previously have to know the sample means and the mean of the sample means:

$M_x=92,\,\,M_y=97,\,\,M_z=84\\\\M=(92+97+84)/3=91$

The MSB is then:

$s^2=\dfrac{\sum(M_i-M)^2}{N-1}\\\\\\s^2=\dfrac{(92-91)^2+(97-91)^2+(84-91)^2}{3-1}\\\\\\s^2=\dfrac{1+36+49}{2}=\dfrac{86}{2}=43\\\\\\\\MSB=ns^2=4*43=172$