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Mathematics 8 Online
OpenStudy (anonymous):

Profit is always calculated as revenue minus expenses. If a company’s expenses were $10 million, write an equation that expresses profit, P, (in millions of dollars) in terms of revenue, R, (in millions of dollars). Then, determine the profit when revenue is $25 million. the answers are

OpenStudy (noseboy908):

To start, we have two variables we have to add in. Both P, for profit, and R for revenue. So, please tell me: Which is the variable that relates the two?

OpenStudy (anonymous):

10milion

OpenStudy (noseboy908):

The variable, not the given number. Is P or R the combination of the remaining two parts?

OpenStudy (anonymous):

p is the combination of the remainin two parts

OpenStudy (noseboy908):

Correct! It's true because it is found by combining the two. So, to start making an equation, let's imagine the P, or profit being on it's own side. Next, consider and answer me this: do expenses in any setting add to or subtract from the total profit?

OpenStudy (anonymous):

the expenses do add from the tottal

OpenStudy (noseboy908):

Be careful how you state that, you say they "add from the total", which combines both of my options. So, pick one: Does it "add to", or "subtract from" the total?

OpenStudy (anonymous):

it says "do me"

OpenStudy (anonymous):

change it now!

OpenStudy (noseboy908):

What are you talking about?

OpenStudy (anonymous):

add to

OpenStudy (noseboy908):

Think about it, do expenses add to profits?

OpenStudy (anonymous):

oh ok now i get it it subtracts from

OpenStudy (noseboy908):

Correct. So if profit is alone on one side, we have to put the cost with the revenue on the other side. Try to set up an equation from there.

OpenStudy (anonymous):

so wouldnt be p=10-r; $15 million

OpenStudy (noseboy908):

You're close, but you have mixed up two variables. If, as we said earlier, you have to subtract the expenses from revenue to find Profits. Try to rewrite your equation with this in mind.

OpenStudy (anonymous):

p=r-10;15 million

OpenStudy (noseboy908):

Correct!

OpenStudy (anonymous):

thnx

OpenStudy (noseboy908):

Welcome!

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