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cestrela7 [59]
3 years ago
10

Example of an inverse operation

Mathematics
1 answer:
Alexxx [7]3 years ago
6 0

Addition is the inverse of subtraction and multiplication is the inverse of division.

Ex:  1+1 = 2,  2-2 = 0

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A right triangle has a height of 27 inches and a base of 30 inches what is the area of the triangle
klasskru [66]

Answer:

The answer is 405

Step-by-step explanation:

FIrst you would do 27 times 30 which is 810 then you would divided by 2 which in turn gives you 405

Hope this helped!

7 0
3 years ago
Please hurry I will mark you brainliest <br><br> What is the slope of this?
Sedbober [7]

Answer:

-3/2

Step-by-step explanation:

the slope of a line is expressed as ratio y/x showing how many units y changes, when x changes a certain number of units.

so, going from A to B, x changes 4 units (from -3 to +1), and y changes 6 units (down, from +3 to -3). that makes the y change negative.

so, the slope is

-6/4 = -3/2

8 0
3 years ago
Elena has written 3 sports books for kids. One book is about soccer, one is about baseball, and one is about basketball. Elena h
Mamont248 [21]

Answer:

1293 soccer books

Step-by-step explanation:

The tricky part about questions like this is: how do I assign variables to the three types of book?

You get a clue from the sentence, "She sold 3 times as many copies of the soccer book as the baseball book."  The number of soccer books is being described by referring TO the number of baseball books.  Pick a variable and assign it to the item being REFERRED TO!

x = number of baseball books

Then  3x = number of soccer books.  The number of basketball books is the same, so 3x = number of basketball books.  Here's the list...

x = number of baseball books

3x = number of soccer books

3x = number of basketball books

The total of these is 3017, so

x + 3x + 3x = 3017

7x = 3017

x = 431

Ah!  But don't forget to look back at the question:  it asks for the number of SOCCER books!  That's 3x, so 3(431) = 1293.

5 0
3 years ago
10 POINTS!!!!<br><br> Name an angle that is vertical with ∠BOC.
Komok [63]
Vertical angle is the angle that is opposite to a specific angle 

Thus the angle would be <FOE
or you can name it as <EOF
Makes no difference. 
8 0
3 years ago
What is the missing numerator in the equivalent fraction? The mixed number 3 one-half is equivalent to a fraction with a denomin
Alex

7 is the missing numerator in the equivalent fraction with a denominator of 2.

<u>Step-by-step explanation</u>:

The mixed fraction is 3 1/2.

  • Convert it into a proper fraction to get a equivalent fraction.
  • Multiply the denominator 2 with 3 and then add 1 to the answer.

⇒ 3 1/2 = ((3\times2) + 1)/2

⇒ 3 1/2 =7/2

∴ The numerator of the equivalent fraction is 7.

3 0
3 years ago
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