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Katena32 [7]
3 years ago
7

Alex has a grid in the shape of a rectangle. he has right triangles. each right triangle has an area of 25 square millimeters an

d each right triangle fits on the grid. if the length of the grid is 20 centimeters and the width is 12 centimeters, how many right triangles can alex fit on the grid?
Mathematics
1 answer:
Maurinko [17]3 years ago
4 0
First you have to find the area of the rectangular grid. The area of a rectangle is length•width.
So:
A= 20•12
A= 240cm
Then you need to convert 240cm into mm.
240cm is 2400mm.

Then you need to figure out how many triangles can fit into the rectangle if all the triangles have an area of 25mm. So you divide 2400 by 25.
2400:25= 96

So Alex can fit 96 triangles into the grid.
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Find the value of this expression is x=-6. X2/x+3
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Answer:

4

Step-by-step explanation:

x=-6

Fill in for x

(-6)2/(-6)+3

-12/-3

=4

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3 years ago
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Edward had 100 newspapers to deliver on his paper route. He had already delivered 25
kati45 [8]

Answer:

50 newspapers

Step-by-step explanation:

100 (total amount of newspapers) - 25 (amount Edward already sold) = 75 (amount of newspapers left)

75 (amount of newspapers left) ÷ 3 (Edward and his 2 friends) = 25 (equal amount each person delivered)

25 (amount Edward already sold) + 25 (amount Edward sold after his friends helped him) = 50 (amount of newspapers Edward sold in total)

4 0
3 years ago
Does anyone know what absolute deviation is..?
Ostrovityanka [42]

Answer:

Mean absolute deviation (MAD) of a data set is the average distance between each data value and the mean. Mean absolute deviation is a way to describe variation in a data set. Mean absolute deviation helps us get a sense of how "spread out" the values in a data set are.

Step-by-step explanation:

To find the mean absolute deviation of the data, start by finding the mean of the data set. Find the sum of the data values, and divide the sum by the number of data values. Find the absolute value of the difference between each data value and the mean: |data value – mean|.

6 0
4 years ago
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Could someone help me finding out the missing answers?
Tema [17]

Answer:

See below.

Step-by-step explanation:

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The slope of P'Q' =

(v + b) - (z + b)

---------------------   =   (v - z) / (w - x)

(w + a - (x + a)

Both lines have a slope that is (v - z)/ (w - x).

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7 0
3 years ago
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Leokris [45]
The algebraic equation used to answer this question is:
3d + 4(1/2d) = 56.5
This is because he ran d, the distance, three times that week. For the rest of the four days, he ran 1/2 the distance, or half d.
To find the answer, you first distribute:
3d + 2d = 56.5
Add like terms:
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Divide both side by 5:
5d/5 = 56.5/5
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On the first three days, Luke jogged 11.3 miles. On the remaining days, where he jogged 1/2d, Luke jogged 5.65 miles.
Hope this helps!
3 0
3 years ago
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