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ziro4ka [17]
3 years ago
10

Common denominator and strategy 2/3 and 10/15

Mathematics
2 answers:
inessss [21]3 years ago
8 0
The common denominator of 2/3 and 10/15 is 15.
To go further,
2/3 can be multipled by 5.
So 2 • 5 = 10
And 5 • 3 = 15
Therefore the new fraction is 10/15
When comparing to the 10/15, both of them are equivalent fractions.
Tom [10]3 years ago
3 0
Their common denominator is 15. Hope it helps! :) If you could vote my answer as the brainliest, that would be awesome! :)
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Identify each expression with a sum of x2 + 3x +1.
Yuki888 [10]

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5 0
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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
Pleases complete the proof but with each step can you tell me which property of equality to use.
wel

Answer:

Step-by-step explanation:

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