Answer:
Step-by-step explanation:
<u> </u>
3.4 or 3.4 repeating (3.4444444444444444444444∞)
and
3.44 rounded to the hundredth
Answer:
$44.45
Step-by-step explanation:
5 bushels of oranges is $31.75 so 1 bushel is 31.75/5 = 6.35
7 bushels of orange is $6.35 x 7 = $44.45
Multiplying the two pieces of the function together:
. This is a quadratic function, and since the coefficient of <em>x</em>² is negative we know it is opening downward and thus has a maximum. We can find the maximum by finding the vertex. First we find the axis of symmetry:
. This tell us there will need to be 3 $5 decreases in price, or a $15 decrease, to maximize the function. $50-$15=$35.
We now plug our 3 in for <em>x</em> in our function:
If they decrease the price their total revenue will be $30,625.
Looking at the function we know that they sell an extra 125 yearbooks for every $5 decrease in price. There were 3 $5 decreases, so 3(125) = 375 extra yearbooks. Add this to the original 500 and we have 375+500=875 yearbooks.
x+4=3x
first subtract x from both sides(x-x and 3x-x)
4=2x
Now divide 2 from both sides (2x/2 and 4/2)
2=x
So x=2