Question

HELP please

Answer 1

@ganeshie8 help

Answer 2

@SithsAndGiggles help

Answer 3

any idea what profit is ? (in general terms)

Answer 4

nope

Answer 5

I dont know what to do

Answer 6

what is revenue?
what is cost ?

Answer 7

R(q)=550q−q^2

Answer 8

that is an equation. But first, you have to know what the words mean.

what does "revenue" mean?

Answer 9

revenue means profit, its your outcome

Answer 10

@phi

Answer 11

if you buy wood for $10, build a table, and sell the table for $20
how much you get for selling the table is $20. That is revenue

but that is not your profit, because you had to pay to get the wood. (that is the cost)

profit is what is left over of the revenue after you pay the costs.

Answer 12

ok

Answer 13

speaking generally,
profit = revenue - cost

use that idea, but use the equations they gave you

Answer 14

i get this -q^2 +562q-75

Answer 15

can you check that?

Answer 16

write down revenue - cost
\[ (550q - q^2) - (75+12q) \]
now simplify

Answer 17

your middle term 562q is not correct

Answer 18

I get q^2 -538q + 75

Answer 19

is that what you get?

Answer 20

you were closer the first time
start with
\[ (550q - q^2) - (75+12q) \]
next, "distribute" the minus sign . that means multiply each term inside the parens by -1
can you do that ?

Answer 21

550q-q^2-75-12q

Answer 22

yes, now combine "like terms"
550q - 12q
and put in "standard order"

Answer 23

-q^2 +538q-75

Answer 24

looks good.

that is the equation of a parabola (shaped like \( \cap\) )
It has a peak at the vertex.

any idea how to find the q value (q is like x in a "normal" equation) of the vertex?

It is -b/(2a)

Answer 25

I get 269 for the second part

Answer 26

is that what you get?

Answer 27

yes

Answer 28

@phi can you help me with one more question?

Answer 29

if you make a new post