12 x 8 = 96. Lack of information so I’m not sure if there’s more to the problem
Answer:
Hope the picture will help you........
Percentage of all the people in the company are under the age of 25=x
We have to use the weighted average.
x=(Σwi * vi )/<span><span>Σ</span> </span><span>wi
w₁=3
w₂=2
v₁=40%
v₂=10%
</span>x=[3(40%)+2(25%)] / (3+2)=34%
Solution: 34% of all people in the company are under the age of 25.
Answer:
y = 13x
Step-by-step explanation:
First we need to take the number miles the Johnson family drove and divide it to the number of gallons of gasoline used to find how many miles per gallon
Miles per gallon = 52/4
Miles per gallon = 13
Now that we know how many miles per gallon, let's make an equation to find how much they can travel on a full tank of 15 gallons.
Let y = number of miles traveled
Let x = number of gallons
y = 13x
Now let's see how much they can travel in 15 gallons.
y = 13x
y = 13(15)
y = 195 miles
So the Johnson family can drive 195 miles on a full tank of 15 gallons of gasoline.
Maximize
subject to 



That's clearly maximum when the squared term is zero, so



Answer: a=12, b=24, max 288