A. is right
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Answer:
y = 1.5
Step-by-step explanation:
Given y varies directly as x then the equation relating them is
y = kx ← k is the constant of variation
To find k use the condition x = 48 when y = 6
k =
=
= ![\frac{1}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B8%7D)
y =
x ← equation of variation
When x = 12, then
y =
× 12 = 1.5
Answer:
Step-by-step explanation:
6(x-3)=6(x)+6(-3)=6x-18
Answer:
60-12= 48 min. or .8 hours
Step-by-step explanation:
Answer:
Zachary is 9, Nicole is 8, and Jaycob is 27.
Step-by-step explanation:
x=Zachary
y=Nicole
z=Jaycob
x+y+z=44
x*3=z
x-1=y
However, for now, let's just assume that x and y are actually the same, and that the answer is actually 45.
so, x*3=z, and y*3 also equals z.
This is so that technically, 45/5=x, because z accounts for 3, and both x and y account for 1 each, meaning altogether it should be 5 you should be dividing by. 45/5=9, so x=9. Now that we have that figured out, we can solve the rest easily. 9-1=8, so there's your y, and 9*3=27. 27+9=36, and 36+8=44.