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disa [49]
2 years ago
7

4x-6y=17 4x+2y=21 solua

Mathematics
1 answer:
den301095 [7]2 years ago
6 0
Subtracting 4x+2y=21 from 4x-6y=17 will cancel out the x terms and result in -8y=-4. Then, dividing both sides by -8 results in y=1/2. In order to find x, plug 1/2 for y in either equation. If we use the first equation, the new equation looks like: 4x-6(1/2)=17. Multiplying -6 and 1/2 will simplify the equation to 4x-3=17. Then, adding three to both sides results in 4x=20. The last step is to divide both sides by 4 in order to get x by itself. x=5. So, the coordinate point that satisfies both equations is (5,1/2).
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Insert 5 G.Ms between 3 and 192​
never [62]

Answer:

6, 12, 24, 48 and 96.

Step-by-step explanation:

We look for a geometric sequence with first term = 3:

nth term= a1 r^(n-1)

3 r^(n-1) = 192

r^(n-1) = 192 / 3 = 64

2 ^ 6 = 64   so r = 2.

Series is 3 ,6, 12, 24, 48, 96, 192.

So 5 geometric means would be 6, 12, 24, 48 and 96.

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