Set up a system of equations:
x + y = 9
1/x +1/y = 1/2
The easiest way to solve would be substitution.
x + y = 9 can be solved for y:
y = 9 - x
Then plug this into the second equation and solve for x:
1/x + 1/(9-x) = 1/2
(9-x) + x = x(9-x)/2
9 = (9x-x²)2
18 = 9x - x²
x² - 9x + 18 = 0
(x-6)(x-3) = 0
x = 6, 3
You can check your answer by plugging the two numbers back into both of the equations:
6 + 3 = 9
1/6 + 1/3 = 1/2
The two numbers are 6 and 3.
Answer:
The equation in slope-intercept form will be:
Step-by-step explanation:
Given
We know that the slope-intercept form of the line equation is

where m is the slope of the line and b is the y-intercept
substituting m = -2 and the point (5, 4) in the slope-intercept form to get the y-intercept 'b'
y = mx+b
4 = -2(5) + b
4 = -10 + b
b = 4+10
b = 14
now substituting m = -2 and b = 14 in the slope-intercept form to get the equation in slope-intercept
y = mx+b
y = -2x + 14
Therefore, the equation in slope-intercept form will be:
Answer:
B = -6
Step-by-step explanation:
7b + 12 = 5b
12 = -2b
-6 = b
Hope this helps. Pls give brainliest.
Answer:
x/x=1
Step-by-step explanation:
when divide any two things which are equal then the answer is 1!!!
Answer:
109
Step-by-step explanation:
(4)28+(-3)
4*28=112
112+(-3)
112-3
109
Hope this helps, LMK if its right