Answer:
Step-by-step explanation:
.01 (subtract confidence level from 100)
5x+45=1605
-45 from both sides
5x=1560
divide each side by 5
x=312
Answer:
if we are talking on a standard graph then the origin is 0 on the x axis and 0 on the y axis
Step-by-step explanation:
Answer:
4.5
Step-by-step explanation:
→ Set up the direct proportion equation
z = kx
→ Substitute in the values
12 = 3k
→ Divide both sides by 3 to isolate k
4 = k
→ Substitute the value of k back into the original direct proportion equation
z = 4x
→ Substitute the value of z in
18 = 4x
→ Divide both sides by 4 to isolate x
4.5 = x