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lord [1]
3 years ago
9

Use _________ to isolate the variable. A reciprocals B subtraction C an expression D inverse operations

Mathematics
1 answer:
photoshop1234 [79]3 years ago
8 0
<h3>Answer: D) inverse operations</h3>

For example, let's say we had the equation x+10 = 30

We are adding 10 onto some unknown number x to get 30. To find x, we undo what is happening to x, so we subtract 10 from both sides. Subtraction is the inverse operation of addition.

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Write the equation of the line in standard form that has a slope of 2/3 and y-intercept of -7.
trasher [3.6K]

Answer:

-2/3x + y = -7

Step-by-step explanation:

So, y = 2/3x - 7 is the slope-intercept equation. Now, we need to turn it into the standard equation of a slope.

Standard equation --> Ax + By = C

y = 2/3x - 7

-2/3x     -2/3x

----------------------

-2/3x + y = -7 --> this is your equation in standard slope form.

3 0
2 years ago
Read 2 more answers
John pays a $3 monthly service fee plus 11 cents per minute. his bill was $23.13. how many minutes did he use?
xenn [34]
Pretty sure its 183. correct me if im wrong tho
5 0
3 years ago
Find the value of each variable so that the quadrilateral is a parallelogram.
Dmitry [639]

Answer:

<em>x = -2</em>

<em>y = -5</em>

Step-by-step explanation:

<u>Properties of a Parallelogram</u>

  • Two pairs of opposite sides are parallel.
  • Two pairs of opposite sides are equal in length.
  • Two pairs of opposite angles are equal in measure
  • The diagonals bisect each other.
  • Adjacent angles are supplementary.
  • Each diagonal divides the quadrilateral into two congruent triangles.

Each diagonal is divided into two measures expressed with variables. Since diagonals bisect each other:

y + 23 = -4y - 2.  And

-2x + 6 = x + 12

Solve the first equation. Adding 4y:

5y + 23 = - 2

Subtracting 23:

5y = -25

Dividing by 5:

y = -5

Solve the second equation. Subtracting x and 6:

-3x = 6

Dividing by -3:

x = -2

Solution:

x = -2

y = -5

4 0
3 years ago
Joe pays $25.10 for 2.5 pounds of wall-paper. What is the price, in dollars and cents, per pound of wall paper?
11111nata11111 [884]

Answer:

10.04

Step-by-step explanation:

25.10/2.5=10.04

5 0
3 years ago
Read 2 more answers
What is 45 to the 5th power
vivado [14]
To find the answer you must multiply 45 5 times not by 5 just write down 5 45s and multiply it all together witch is 184528125 :)
6 0
3 years ago
Read 2 more answers
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