The distributive property is used when you have a value multiplied by 2 values separated by an operation.
For example, if you have x (y + z), then you would use the distributive property to get x (y + z) = xy + xz.
Answer:
a) r(x) = 28x
b) p(x) = -x^2 +30x +9
c) 15
Step-by-step explanation:
a) Let x represent the number of items sold. Each sale results in $28 of revenue, so the revenue function r(x) is ...
r(x) = 28x
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b) p(x) = r(x) - c(x) = 28x -(x^2 -2x -9)
p(x) = -x^2 +30x +9
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c) The axis of symmetry of ax^2 +bx +c is -b/(2a). Here, the axis of symmetry of the profit function is ...
x = -30/(2(-1)) = 15
15 is the quantity of sales that maximizes profit.
First you solve 2y-3y=9.
Now that you have y, then you substitute y into x-2y=3 to find X
Your solution is (-15, -9)
Answer:
we can not graph on here
Step-by-step explanation:
Answer:
Equation: 4(76) = Cups of food elephants eat per day
Solution: Elephants eat 304 cups of food per day.
Step-by-step explanation:
Monkeys eat 4 cups.
Elephants eat 76 times as much.
The phrase “times as much” means to multiply.
4 multiplied by 76 = Cups of food elephants eat per day.
4 (76) = 304
Elephants eat 304 cups of food per day.