solve the inequality, graph the solution.
72 < -28
a = b = 80 . . per night
the value of w that makes the prices equal can be found from
a = b
240 -20w = 320 -30w
10w = 80
substituting this value into the equation for a, we get
a = 240 -2(10w) = 240 -2(80) = 80
we can check that we also get the same value for b:
b = 320 -3(10w) = 320 -3(80) = 80
comment on this solution
we could go to the trouble to divide by 10 to find w=8, but then we would need to multiply it by 10 again to get 20w or 30w. we can just use the result as is without the extra steps.
hey there! for asking your question here on brainly!
for this sort of problem, we'll use the equation y = k/x, which is for inverse variations. first, we'll need to solve for k.
4 = k/12
k = 48
next, we'll need to plug k into our equation from the beginning, as well as 3 for x in order to solve for y.
y = 48/x
y = 48/3
y = 16
therefore, your answer is y = 16.
hope this : )