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zaharov [31]
3 years ago
15

Can the values be added or subtracted? If one value needs to be converted to another, describe the conversion. 6.5 yd + 32 in. A

. The values cannot be added because one is measuring area and the other is measuring length. B. The values can be added after making a conversion of units because they both measure length. C. The values can be added without making a conversion of units because they both measure length. D. The values cannot be added because one is measuring capacity and the other is measuring length.
Mathematics
1 answer:
sukhopar [10]3 years ago
7 0
Convert both to either yards or inches and you can just add the numbers. B is the right answer.
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Solve for x and y:<br> 3/x -1/y =13/10<br> 1/x + 2/y =9/10
harkovskaia [24]

Answer:

  (x, y) = (2, 5)

Step-by-step explanation:

I find it easier to solve equations like this by solving for x' = 1/x and y' = 1/y. The equations then become ...

  3x' -y' = 13/10

  x' +2y' = 9/10

Adding twice the first equation to the second, we get ...

  2(3x' -y') +(x' +2y') = 2(13/10) +(9/10)

  7x' = 35/10 . . . . . . simplify

  x' = 5/10 = 1/2 . . . . divide by 7

Using the first equation to find y', we have ...

  y' = 3x' -13/10 = 3(5/10) -13/10 = 2/10 = 1/5

So, the solution is ...

  x = 1/x' = 1/(1/2) = 2

  y = 1/y' = 1/(1/5) = 5

  (x, y) = (2, 5)

_____

The attached graph shows the original equations. There are two points of intersection of the curves, one at (0, 0). Of course, both equations are undefined at that point, so each graph will have a "hole" there.

3 0
3 years ago
Find the area of the trapezoid below in square centimeters (cm). The area of the trapezoid is
BARSIC [14]

Answer:

122.5

Step-by-step explanation:

Use the area formula for a trapezoid (attached below as an image):

A = area in sq cm

a = top base

b = bottom base

h = height

Correspond the correct values with the variables:

a = 14

b = 21

h = 7

A = 1/2 * (14 + 21) * 7

A = 1/2*(35)*7

A = 17.5 * 7

A = 122.5 sq cm

Hope this helps (●'◡'●)

6 0
3 years ago
Write an equation of the form y=mx for the pairs (-1,4) and (1,-4)
hram777 [196]
Y = mx
We just need to find the slope:

y2 - y1 / x2 -x1 = -4 - 4 / 1 - - 1 = -8/2 = -4/1 = -4

so:  y = -4x

Hope that helps! :)
5 0
3 years ago
1. Find the sum.<br> 109.526 + 36.42<br> Also show the work please
Kobotan [32]
109.526 + 36.42 equals 145.946
5 0
3 years ago
Read 2 more answers
The diameter of a circle is 6 cm. About how long is the circumference of the circle?
IgorLugansk [536]

Answer:

The circumference is about 19 centimeters.

Step-by-step explanation:

The formula for finding the circumference of a circle is 2\pi r or simply \pi d.

Now input the values into the formula, keeping in mind that pi is almost 3.14.

\pi *6=18.84

Answer ≈ 19 cm

Hope this helps; have a great day!

5 0
3 years ago
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