12/20 = 0.6, 10/25 = 0.4 = NO
12/18 =0.66, 10/15 = 0.66 = YES
5/3 = 1.6, 3/5 = 0.6 = NO
8/16 = 0.5, 3/4 =0.75 = NO
Answer is B
Answer:
y =
Step-by-step explanation:
Given that y varies inversely with x then the equation relating them is
y = ← k is the constant of variation
To find k use the condition y = when x = , thus
= = 2k ( divide both sides by 2 )
k =
y = ← equation of variation
When x = , then
y = = =
Answer:
The answer is three
Step-by-step explanation:
Answer:
x = -27 or 1
Step-by-step explanation:
Let z = x^(1/3). Then the equation becomes the quadratic ...
z^2 +2z -3 = 0
(z +3)(z -1) = 0
z = -3 or +1 . . . . values of z that make the factors be zero.
Then
x = z^3
so the two solutions are ...
x = (-3)^3 = -27
x = 1^3 = 1
200 - 20 = 180
180/5 = 36.......so the maximum they can spend on each rod is 36 bucks