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3 years ago

Help1 plsssssssssssssssssssssssssssssssss

Mathematics

1 answer:

Alexeev081 [22]3 years ago

4 0

Answer:

The answer is C. 30

Step-by-step explanation:

First, you would do 36 divided by 6 to get 6. Then you do 5 times 6 to get 30. You have to multiply both five and six by 6 to get an equal ratio.

5:6 is equal to 30:36.

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3(3-y)+1=31 What’s the solution to “Y”?

laila [671]

3(3-y)+1=31
9-3y+1=31
10-3y=31
-3y=31-10
-3y=21
y=-21/3 = -7

the solution is y=-7

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3 years ago

A flower shop has 744 carnations to tie into bunches of 12 each and 1,896 roses to tie into bunches of 24 each.

Mama L [17]

744 Carnations. 12 of these go into a bunch.

1896 roses, 24 go into a bunch.

744/12=62

1896/24=79

62 bunches of carnations and 79 bunches of roses.

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3 years ago

Three friends go to a book fair. Allen spends $2.40. Maria spends 4 times as much as Allen. Akio spends $3.45 less than Maria. H

kiruha [24]

Akio spends $6.15 at the book fair.

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3 years ago

Find the equation of the line that goes through points (3,2) and has a slope of -3/2

ExtremeBDS [4]

Answer:

ddd

Step-by-step explanation:

ddd fdrcfd g rer fsss fdssss vfdd

5 0

3 years ago

A fourth grade class of 28 students is given a standardized math test. The mean score of the 12 boys is 25 with a standard devia

Mashcka [7]

Answer:

The standard error for the sampling distribution is 1.323.

Step-by-step explanation:

Let X = scores of girls and Y = scores of boys.

The information provided is:

$\bar x=24\\s_{x}=4\\n_{x}=16\\\bar y=25\\s_{y}=3\\n_{y}=12$

As the population standard deviations are not known, use a pooled standard deviation to estimate the standard error of the sampling distribution.

The formula of pooled standard deviation is:

$S_{p}=\sqrt{\frac{s_{x}^{2}}{n_{x}^{2}}+\frac{s_{y}^{2}}{n_{y}^{2}}}$

Compute the standard error for the sampling distribution as follows:

$SE=\sqrt{\frac{s_{x}^{2}}{n_{x}^{2}}+\frac{s_{y}^{2}}{n_{y}^{2}}}=\sqrt{\frac{4^{2}}{16}+\frac{3^{2}}{12}}=\sqrt{1+\frac{9}{12}}=\sqrt{\frac{21}{12}}=1.323$

Thus, the standard error for the sampling distribution is 1.323.

7 0

3 years ago