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sp2606 [1]
2 years ago
15

The figure shows a rectangle ABCD where the diagonals AC and BD intersect E. Given that BEC=52.

Mathematics
1 answer:
denis23 [38]2 years ago
3 0
Ii is the correct answer and try using photomath it helps ;)
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Of all the students that Mikey surveyed, 30% said they play baseball. If 21 students play baseball, how many students did Mikey
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5 0
3 years ago
Consider the system of equations.
jok3333 [9.3K]

Given:

The system of equations:

x-3y=9

\dfrac{1}{5}x-2y=-1

To find:

The number that can be multiplied by the second equation to eliminate the x-variable when the equations are added together.

Solution:

We have,

x-3y=9                        ...(i)

\dfrac{1}{5}x-2y=-1       ...(ii)

The coefficient of x in (i) and (ii) are 1 and \dfrac{1}{5} respectively.

To eliminate the variable x by adding the equations, we need the coefficients of x as the additive inverse of each other, i.e, a and -a So, a+(-a)=0.

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On multiplying equation (ii) by -5, we get

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On adding (i) and (iii), we get

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Here, x is eliminated.

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6 0
3 years ago
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