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Vikentia [17]
3 years ago
15

Dr. Campbell is ordering new student desks for 4th and 5th graders. There are 6 desks in each box that is delivered to the schoo

l. There are 43 4th graders and 40 5th graders. Write an expression to determine how many boxes Dr. Campbell should order to have a desk for each student?​
Mathematics
1 answer:
Yakvenalex [24]3 years ago
7 0

Answer:

they should buy three more for the 5th grade to match the 4th grade

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Suppose that an urn contains 3 black marbles, 7 yellow marbles, and 10 green marbles. If one marble is selected, determine the p
Yuliya22 [10]

Answer:

1/2

Step-by-step explanation:

Simple probability is a ratio of the number of ways the thing we want to happen can to the total possible outcomes.

(For example, we flip a coin and want heads, but it can land on heads or tails. Our probability of getting heads is 1/2, one way to get heads over the 2 possible outcomes)

So for this problem, there's  20 possible things that CAN happen (3 + 7 + 10) and 10 ways we get what we want (a green marble).

Our probability of getting a green marble is \frac{10}{20\\}, which simplifies to \frac{1}{2}

3 0
3 years ago
Help With These Special Right Triangles!!!
NikAS [45]

Answer:

B.

I hope it will be useful.

Hint:

Since its an isosceles right angled triangle! (Apply the properties)

Or, you can use Pythagoras theorem.

(2x^2=9 v.i.z., on rationalizing 1.5*√2)

4 0
3 years ago
On a coordinate plane, how are the locations of the points (-4 , 8) and (-4 , -8) related?
STALIN [3.7K]

Answer:

A. reflection across the y-axiss

Step-by-step explanation:

Given:

The locations of the two points are (-4 , 8) and (-4 , -8).

To find:

The relation between two points.

From the given points (-4, 8) and (-4 , -8), it is clear that the y-coordinates are same but the sign of x-coordinates are opposite.

If a figure is reflected across the y-axis, then we change the sign of x-coordinate and the y-coordinates remain same, i.e.,

(x,y)→(-x,y)

For (-4,8)

(-4,8)→ (-4,-8)

So, it is reflection across the y-axis.

Therefore, the correct option is A.

6 0
3 years ago
Plz HELP will give extra points
jekas [21]
The mode is 44
The range is 3
The median is 44
The mean is 44
4 0
3 years ago
Use the following graph of the function f(x) = 2x3 + x2 − 3x + 1 to answer this question: graph of 2x cubed plus x squared minus
Zina [86]

Answer:

7

Step-by-step explanation:

f(x) = 2x^3 + x^2 − 3x + 1

f'(x) = 6x^2 + 2x − 3

The slope at -2:

f'(-2) = 6(-2)^2 + 2(-2) − 3

f'(-2) = 24 + -4 − 3

f'(-2) = 17

-----

The slope at 0:

f'(0) = 6(0)^2 + 2(0) − 3

f'(0) =  − 3

The average rate of change is (17+(-3))/2, or 14/2, or 7

                           

6 0
2 years ago
Read 2 more answers
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