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madreJ [45]
3 years ago
10

Solve the system of equations using elimination/ combinations. -2x - y= -4 x+ 2y = 5

Mathematics
1 answer:
dusya [7]3 years ago
7 0

If -2x-y=-4 and x+2y=5, notice that

(-2x-y)+2(x+2y)=-4+2\cdot5\implies3y=6\implies y=2

Then

x+2\cdot2=5\implies x=1

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STatiana [176]

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3 years ago
James has been assigned to provide candy for a class party he needs 5.3 pounds if candy cost $4.25 per pound at Harolds candy st
RoseWind [281]

Answer:

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3 0
2 years ago
Use PEMDAS to solve this problem <br><br> 6÷2(1+2)=?
Finger [1]
The answer would be 8. hope this helps
8 0
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Read 2 more answers
Help anyone pleaseeee
AlexFokin [52]

Answer:

36 <127

(36,127°)

36 [ cos (127) + i sin (127)]

Step-by-step explanation:

w1 = 2 < 95

w2 = 18 < 32


w1 * w2

We multiply the magnitude and add the angles

w1 * w2 = 2*18 < (95+32)

            =36 < 127

             36 [ cos (127) + i sin (127)]

4 0
3 years ago
Describe two to evaluate 37% of the sum of 27 and 3/5 and 15.9
zhuklara [117]
First way is to first find the sum and then find 37% of it. Second way is another way round, find 37 of 27 3/5 and 37% of 15.9 and then add it.

Lets do it
37%=0.37
- its the result
Second way its
0.37* 27 3/5 + 0.37*15.9=10.212 + 5.888=16.095
7 0
3 years ago
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