The solution of the given system of equations is (3//2, -3/8)
We can solve a system of equations using:
- graphical method
- elimination method
- substitution method
The given system of equations:
(1/2)x + (2/3)y= 1 ......... (1)
(3/4)x - (1/3)y = 2 ..........(2)
Multiply equation (1) by 6
3x + 4y = 6 ..... (3)
Multiply equation (2) by 12
9x - 4y = 24 ...... (4)
Add equation (3) and (4)
3x + 4y = 6
<u>9x - 4y = 24 </u>+
12x = 30
x = 30/12 = 5/2
Substitute x = 5/2 into equation (3)
3x + 4y = 6
3. (5/2) + 4y = 6
15/2 +4y = 6
4y = (12 - 15)/2 = -3/2
y = -3/8
The solution is (3/2, -3/8)
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Answer:
https://www.math.uh.edu/~blerina/math1330/spring16/complete/Sec_4.1.pdf
Step-by-step explanation:
Answer:
The sum of angles on a straight line is 180 degrees.
Therefore,
Answer:
Mr Chan spent
90\cdot 0.5 = 4590⋅0.5=45
dollars when he bought the shares. If he sells 45 shares at 3.80, he will gain
45\cdot 3.8 = 17145⋅3.8=171
dollars. So, the net profit would be
171-45 = 126171−45=126
Answer:
$320
Step-by-step explanation:
To find the original price, divide 240 by 0.75
240/0.75
= 320
So, the original price is $320