<span>
2(5+c)=3(5-c)
solve for c
10+2c=15-3c
5c=5
c=1</span>
z is directly proportional to x: z = kx.
If z is directly proportional to x and inversely proportional to y, then z = Kx/y.
When x= 6 and y = 6, z is 12. Find the constant of proportionality, K:
12 = K(6/6), or K = 12
Then, in general, z = 12x/y.
What is z when x=13 and y=10? z = 12(13)/(10) = 15.6 (answer)
Answer: if this is supposed to be in slope-intercept form
the equation would be: y = -2/5x + 7
Step-by-step explanation:
so the slope is: -2/5 and the point is (10,3) considering that x = 10 and y = 3
so we would plug this information into this equation: y = mx + b (slope-intercept form)
3 = -2/5(10) + b
3 = -4 + b
b = 7
and if we plug this in:
y = -2/5x + 7
Answer:
x = 0, x = 0.5 or 1/2 The points on the graph are ( -1/2 or -0.5,0 ) and ( 1,0 )
Step-by-step explanation:
2x^2-x-1 = -1
2x^2-x = 0
x(2x-1) = 0
x=0
x=0.5 or 1/2
Answer:
45
Step-by-step explanation:
