Ask your own question, for FREE!
Mathematics 21 Online
OpenStudy (anonymous):

Can someone help plz!! will fan and medal

OpenStudy (vecters):

question?

OpenStudy (anonymous):

Joanne works two jobs to pay for college. She tutors for $25 per hour and also works as a receptionist for $12 per hour. Due to her class and study schedule, Joanne is only able to work up to 25 hours per week but must earn at least $200 per week. If t represents the number of hours Joanne tutors and r represents the number of hours she works as a receptionist, which system of inequalities represents this scenario? -t + r greater than or equal to 25 25t + 12r = 200 -t + r less than or equal to 25 25t + 12r less than or equal to 200 -t + r less than or equal to 25 25t + 12r greater than or equal to 200 -None of the systems shown represent this scenario.

OpenStudy (anonymous):

i was thinking maybe b?

OpenStudy (anonymous):

@threshsupport

OpenStudy (kamibug):

The lines next to the t's indicate a new answer choice right? Not a negative sign?

OpenStudy (anonymous):

a new answer yes ....sorry

OpenStudy (kamibug):

That's alright :) In that case, you are very close :) It is true that t+r is less than or equal to 25 because she can work no more than 25 hours. However, she could earn "AT LEAST" $200. So what do you think? :)

OpenStudy (anonymous):

c?

OpenStudy (kamibug):

Correct ^_^

OpenStudy (anonymous):

5x + 2y = 3 (equation 1) 2x − 3y = 1 (equation 2) A student wants to prove that if equation 2 is kept unchanged and equation 1 is replaced with the sum of equation 1 and a multiple of equation 2, the solution to the new system of equations is the same as the solution to the original system of equations. If equation 2 is multiplied by 1, which of the following steps should the student use for the proof? -Show that the solution to the system of equations 7x − y = 4 and 2x − 3y = 1 is the same as the solution to the given system of equations -Show that the solution to the system of equations 2x + 5y = 3 and 3x − 2y = 1 is the same as the solution to the given system of equations -Show that the solution to the system of equations 9x + 4y = 5 and 7x − y = 4 is the same as the solution to the given system of equations -Show that the solution to the system of equations −4x + 9y = 5 and 2x − 3y = 1 is the same as the solution to the given system of equations

OpenStudy (anonymous):

thank you sooo much

OpenStudy (anonymous):

@Anaise could you help with some??.

OpenStudy (anonymous):

or @KamiBug

OpenStudy (anaise):

Sure. :)

OpenStudy (anonymous):

A graph is shown below: Dotted line joining negative 1, negative 2 and 5,0 and the region above the line is shaded. Which of the following inequalities is best represented by this graph?

OpenStudy (anaise):

Let me see the coordinate plane. Or graph.

OpenStudy (anonymous):

- x − 3y > 5 -x − 3y < 5 -x − 2y > 5 -x − 2y < 5

OpenStudy (anaise):

You can't screenshot it? o.o

OpenStudy (anonymous):

OpenStudy (anaise):

Now tell me....what do you need to find? :)

OpenStudy (anonymous):

the choices are above

OpenStudy (anaise):

I am asking you to explain.

OpenStudy (anonymous):

A graph is shown below: Dotted line joining negative 1, negative 2 and 5,0 and the region above the line is shaded. Which of the following inequalities is best represented by this graph?

OpenStudy (anonymous):

that is what i am supposed to find out

OpenStudy (anaise):

....

OpenStudy (anaise):

-.-

OpenStudy (anonymous):

? @Anaise

OpenStudy (anonymous):

@SithsAndGiggles can u plz help!!??

OpenStudy (anonymous):

@dan815

OpenStudy (anonymous):

@retirEEd can u help?

OpenStudy (anonymous):

@Comrad

OpenStudy (retireed):

The dotted line has a positive slope of 1/3. Correct?

OpenStudy (anonymous):

ummm idk

OpenStudy (retireed):

Why not? The slope of a line is RISE (the change in Y) over RUN (the change in X). m = (Y2 - Y1) / (X2 - X1)

OpenStudy (anonymous):

i dont really understand is y

OpenStudy (retireed):

Do you know what the axis of the graph are?

OpenStudy (anonymous):

no do u know the answer?

OpenStudy (anonymous):

i have 7 questions left and only 15 min to finish

OpenStudy (retireed):

If you can't calculate the slope of a line, I can't help you by giving you the answers.

OpenStudy (anonymous):

is the slope 3?

OpenStudy (retireed):

RISE over RUN .... Does it go up three units to every unit it goes over one?

OpenStudy (anonymous):

yes i think

OpenStudy (retireed):

Sorry I can't seem to get through to you, so you need to get with your teacher and get some extra help. Bye.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!