There are 40 questions on Allison's English test. The multiple choice questions are worth 2 points each, and the short answer questions are worth 5 points each. The entire test is worth 125 points.
Let x = multiple choice questions; and let y = short answer questions.
How many short answer questions are there on the test?
@hartnn @charlotte123
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (charlotte123):
2x + 5y = 125
OpenStudy (anonymous):
So do I plug in stuff?
OpenStudy (anonymous):
Never mind. Dunno how to solve this lol..
OpenStudy (charlotte123):
Yep
Remember - There are 40 problems on the test :)
OpenStudy (anonymous):
So .. I don't know where to go from here =/
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
@charlotte123 What do I do from that equation you gave me??
OpenStudy (charlotte123):
You solve for y :)
OpenStudy (anonymous):
I do this how? =/
OpenStudy (charlotte123):
LOL
You really are stuck!
OpenStudy (anonymous):
I am xD I stink at math =/
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (charlotte123):
Ah It happens LOL
OpenStudy (charlotte123):
40 problems - 125 POINTS <---- 2x + 5y
OpenStudy (charlotte123):
^ Where 5y represents short answer problems and 2x represents long answer problems.
OpenStudy (anonymous):
Okay. What do I do with the 40? and the 125? O_o
OpenStudy (charlotte123):
LOL
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
Cx I hate math gahhh
OpenStudy (charlotte123):
2 POINTS * LONG PROBLEMS + 5 POINTS * SHORT PROBLEMS = 125 POINTS [40 PROBLEMS] <-----
OpenStudy (charlotte123):
I know I know
BUT YOU CAN DO IT!
OpenStudy (anonymous):
Ok. Why is the 40 in brackets? Jeesh feel so dumb Cx
OpenStudy (charlotte123):
You are not - At least you try! Some people on here never ask for help and want the answers To the problems Instead - ASKING QUESTIONS MAKES YOU SMART!
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (charlotte123):
You see - The problems cannot exceed 40
Means that the problems must add To 125 POINTS WITHOUT EXCEEDING 40 :)
OpenStudy (charlotte123):
I shall hand you a clue - 2x ----> x = 10 there.
OpenStudy (anonymous):
So -20?
OpenStudy (charlotte123):
LOL NO
OpenStudy (anonymous):
Oh wait that's not a negative sign xD 20 oops.
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (charlotte123):
10 + -20 ≠ 125
OpenStudy (charlotte123):
OH WAIT I MADE A MISTAKE
Forgot about that there are 40 problems - Would have been 33 If I handled It my way LOL
OpenStudy (anonymous):
Ok so that resolves the problem to currently look like, what? ;o
OpenStudy (charlotte123):
GOT IT
2x <---- Clue - x = 25.
OpenStudy (charlotte123):
So - 25 + 5x = 125 <----
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (charlotte123):
And 25 + 5x = 40 <----
x Is the same In both parts on these.
OpenStudy (anonymous):
What? xD Here's what I was thinking but is incorrect according to what you're doing Cx.
2(25) = 50
But in your equation
25 + 5(25) = 125
25 + 125 ≠ 125
LOL.. I'm sooooo confuseddddddddd lol!
OpenStudy (charlotte123):
L O L
OpenStudy (charlotte123):
x = 25
25 * 2 = 50
125 - 50 = 75
75/5 = x
OpenStudy (charlotte123):
The 1st one was for the POINTS
2nd one was for the PROBLEMS
25 + x = 40.
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (charlotte123):
OH WAIT NOW I SEE
OpenStudy (charlotte123):
-Face Plop-
OpenStudy (charlotte123):
THERE MUST BE CHOICES
OpenStudy (anonymous):
There are no choices =/.. It's "Type your response".
OpenStudy (charlotte123):
WAIT I WAS RIGHT - I JUST MADE A MISTAKE
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (charlotte123):
x + y = 40
And 2x + 5y = 125
OpenStudy (charlotte123):
NOT 2x + 5y = 40
OpenStudy (anonymous):
Ok
OpenStudy (charlotte123):
Now - 2x <---- x = 25 here.
OpenStudy (anonymous):
So 50? Cause 2 * 25 = 50?
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (charlotte123):
YES
So 50 + 5y = 125
And 25 + y = 40
OpenStudy (anonymous):
y = 15?
OpenStudy (charlotte123):
YESSSSSSSSSSSSSSSSSSSSSS
OpenStudy (charlotte123):
THERE YOU GO
OpenStudy (anonymous):
THANK THE MIGHTY GOD OF MATH! (You) Cx
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (charlotte123):
15 + 25 = 40
2(25) + 5(15) = 125
OpenStudy (charlotte123):
LOLLLLLLLLLLLLLLL
OpenStudy (anonymous):
Wish I could medal you 1284312931293192 times Cx. I'm gonna write you a testimonial (:. Thank you so much!!!