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Gemiola [76]
4 years ago
10

13 please I have no idea what the steps for this is

Mathematics
1 answer:
Ilya [14]4 years ago
6 0

Answer:

UV=142

Step-by-step explanation:

21x-13=10x+31

+13 +13

21x=10x+44

-10x=-10x

11x=44

÷11 ÷11

x=4

now substitute 4 in place of x (only have to solve one)

21(4)-13= 71

now multiply your answer by 2

71×2=142

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Subtract the quantity 10x + 5y - 4z from the sum of the quantities 7z + 3y - 10x and 9x - 12y - z
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Answer:

11x + 14y - 10z

Step-by-step explanation:

firstly deal with sum part and then subtract,making sure that you add and subtract values with the same unknowns

(7z + 3y - 10x) + (9x - 12y - z)

then

(10x + 5y - 4z) - (6z - 9y - x)10

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3 years ago
Divide . Write the quotient as one power. The variable is not equal to zero.
gogolik [260]
I need the equation to be able to help
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Write r+4/r+5 and 9/t-1 with a common denominator.
a_sh-v [17]
First Multiply the common denominator for both fractions. The C.D. here is (t+5)(t-1).

When you done the simplification you will get the last choice.

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3 years ago
Help or I die,... HELP​
irakobra [83]

Regarding the points on the given line, it is found that:

a) The midpoint is: (3,4.5).

b) The coordinates of C are: C(4,5).

c) The coordinates of the other end of the line are: (4,3).

<h3>Midpoint</h3>

The midpoint between two points is given by the mean of the coordinates of these points.

In this problem, the coordinates of points A and B are given as follows:

A(0,3) and B(6,6).

Hence the coordinates of the midpoint are given as follows:

  • x-coordinate: (0 + 6)/2 = 3.
  • y-coordinate: (3 + 6)/2 = 4.5.

As for point C, we have that C is closer to B then A, hence:

  • The x-coordinate is greater than 3.
  • The y-coordinate is greater than 4.5.

The coordinates are integers, hence it is given as follows:

C(4,5).

As for line AB, it is found that:

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  • For the x-coordinate, on line AB, they change by 6, hence in the new line they increase by 2/3 x 6 = 4.
  • For the y-coordinate, on line AB, they change by 3, hence in the new line they increase by 2/3 x 3 = 3.

Thus the other endpoint is:

(4,3).

More can be learned about the mid-point of a line at brainly.com/question/18315903

#SPJ1

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1 year ago
Write an expression for the sequence of operations described below. triple v, then subtract 7 from the result Do not simplify an
oee [108]

Given:

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3 years ago
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