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anastassius [24]
3 years ago
11

PLSSS HELP MEE PLSSSS

Mathematics
2 answers:
Minchanka [31]3 years ago
8 0

Answer:

d

Step-by-step explanation:

Elza [17]3 years ago
6 0
C- 5 less than 6 times some number.
5 - 6t
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Elimination/subtraction
denpristay [2]

Answer:

x = 0, y = 7

Step-by-step explanation:

Solving a system of equations using substitution requires one side to be equal to a variable present in the equation, in this case x or y. We should simplify the equation using elimination before substituting to reduce the chance of error.

In order to use the elimination method, you have to create variables that have the same coefficient—then you can eliminate them. These equations arew already aligned for us.

                  3x - 10y=-70

             -<u>   4x +9y = 63</u>

                  -x + y = 7

Now, for substitution, the equation must be set to a variable.

                  -x + y = 7

                  y = x + 7

Next, plug the equation in where applicable in another equation.

                  4x +9(x + 7) = 63

                  4x + 9x + 63 = 63

                  13x = 0

                  x = 0

The final step of substitution is to plug the known variable into an equation to find the other variable.

                  3(0) - 10y=-70

                  0 - 10y = -70

                  10y = 70

                  y = 7

I guarantee you this answer is correct, I worked it out using other methods and graphing prior to submitting this answer.

8 0
3 years ago
Read 2 more answers
The lengths of the sides of the triangle are 3, 8, and 10. Is the triangle a right triangle, acute triangle, or an obtuse triang
weqwewe [10]

Answer:

Obtuse

Step-by-step explanation:

  1. You have to make sure it is a triangle by adding the smallest and the medium sides, if the result is greater than the bigger side then it is a triangle.
  2. you then use the Pythagorean theorem to check if the triangle is a right triangle, acute, or obtuse. If c^{2} = a^{2} +b^{2} then it is a right triangle. If c^{2} >a^{2} + b^{2} then it is an obtuse triangle. if c^{2} < a^{2} +b^{2} then it is an acute triangle.
  1. 10^{2} _ 3^{2} + 8^{2}
  2. 9+64_100
  3. 70_100
  4. 70<100

in this case c^{2} is greater than a^{2} +b^{2} therefore, is it an obtuse triangle.

3 0
2 years ago
When you Divide a whole number by a fraction with a numerator of one explain how you can find the quotient
kumpel [21]
Well for example: 10/1 divided by 1/2
What you will do you would flip 1/2 it would now become 2/1
Then you change the sign to multiplication so your equation will look like 10/1*2/1 then just multiply from there on out.
6 0
3 years ago
What is 2 to the fourth power plus 81 minus 50 plus 5?
Taya2010 [7]

Answer:52


Step-by-step explanation:

2^4 = 16

Then..

16+81 =97

Then..

97-50 = 47

Lastly..

47+5 = 52

4 0
3 years ago
Read 2 more answers
Suppose you know the volume of a pyramid with a rectangular base is 200 cubic units. How could you find a set of dimensions for
Vinil7 [7]
I tried figuring it out but sorry I can’t help you
4 0
2 years ago
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