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ivolga24 [154]
3 years ago
11

18. S

Mathematics
2 answers:
Triss [41]3 years ago
7 0

Answer:

15×5= 75 pencils

75/26= 2 pencils each student

23 pencils leftover

ElenaW [278]3 years ago
5 0

Answer:

She can give each sudent 2 pencils

She will have 23 pencils leftover

Step-by-step explanation:

First we must calculate how many pencils we have, this will be the amount of pencils in each box times the number of boxes like this:.

15x5=75 pencils

To know how many pencils she can give to each student we will handle one at the time, if we give each student one pencil we would use 26 pencils this is lesser than 75, if we give each student 2 pencils we use 52 pencils (26x2=52) this is still lesser than 75, if we give each student 3 pencils we would use 78 pencils and this is bigger than 75 so it is not possible. this leads us to the conslusion that we can only give each student 2 pencils so all of them will have the same amount of pencils.

and if we use only 52 pencils out of the 75 we can find how many are left over by doing a simple substraction like this:

75-52=23 pencils

we have 23 pencils leftover

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Been trying to get this one answered for months, will make the first one to answer a brainliest :D Please explain how you did it
Nikitich [7]

Answer:

\frac{2}{7}

Step-by-step explanation:

In order to find the slope of a line you must find where the points intersect, use the formula for slope, substitute values, and simplify if needed.

In this case we were already given the points for slope:

P1=(-4,-4) = (x1,y1)

P2=(-2,3)=(x2,y2)

Slope formula:

slope = \frac{y2-y1}{x2-x1}

Now substitute:

\frac{-2--4}{3--4}

Solve using KCC: (Keep, Change, Change)

-2+4=2

3+4=7

=\frac{2}{7}

Because the slope isn't a negative you do not need to simplify the answer.

Hope this helps.

8 0
3 years ago
Given that a 90% confidence interval for the mean height of all adult males in Idaho measured in inches was [62.532, 76.478]. Wh
NNADVOKAT [17]

Answer:

The point estimate used to estimate the mean height of all adult males in Idaho is 69.505 inches.

Step-by-step explanation:

Each confidence interval has two bounds, the lower bound and the upper bound. The points estimate used to estimate the mean is the halfway point between those two bounds, that is, the sum of those two bounds divided by two.

In this problem, we have that:

Lower bound: 62.532

Upper bound: 76.478

Point estimate: (62.532 + 76.478)/2 = 69.505

The point estimate used to estimate the mean height of all adult males in Idaho is 69.505 inches.

3 0
2 years ago
Find the equivalent to x^7
MrMuchimi
1/x^-7

It would look more like       1
                                        ------
                                             -7 (as an exponent)
                                          x
3 0
3 years ago
Variable y varies directly with variable x. If x = 12, then y = 3. What is the value of y
Monica [59]

Answer:

<h2>y = 2</h2>

Step-by-step explanation:

To find the value of y when x = 8 we must first find the relationship between the two variables.

The statement

y varies directly with variable x is written as

y = kx

where k is the constant of proportionality

when

x = 12

y = 3

Substitute the values into the above formula and solve for k

That's

3 = 12k

Divide both sides by 12

k =  \frac{1}{4}

So the formula for the variation is

y =  \frac{1}{4} x

when

x = 8

y =  \frac{1}{4}  \times 8

we have the final answer as

<h3>y = 2</h3>

Hope this helps you

5 0
3 years ago
Write the fraction as a decimal.<br> Round to the nearest thousandth.<br> 7<br> 22
sveticcg [70]

Answer:

0.318

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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