20y+30x=1000 divide 20 on each side to st the y alone.
y+30x=50 next put it in slope intercept form
y=30x+50 I don't know if this was te answer you were looking for but I hope it is
S(x) = 22x + 124
s(5) = 22(5) + 124
s(5) = $234
300 = 22x + 124
-124 -124
176 = 22x
divide by 22
8 = x
Answer:
Anna spent $51 in all.
Step-by-step explanation:
36+15=51
Answer:
Step-by-step explanation:
the minimum of f is for x = 1 and f(1)=0
f is decreasing for x<=1 and increasing for x>=1
so the domain is
x>=1 so x is positive and we can take the square root
so
No solution or x=0 or x=-3 or x=3