Mathematics
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OpenStudy (anonymous):
*********FAN AND MEDAL*******
2x + 3y = 30... Find 3 diffrent combinations of x and y's solution (I already have one which is x = 6, and y = 6. PLEASE HELP ME!!!
13 years ago
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OpenStudy (anonymous):
@Mertsj
13 years ago
OpenStudy (anonymous):
@quarkine come on can you help me out Sasuke?
13 years ago
OpenStudy (anonymous):
@dusty any ideas on this?
13 years ago
OpenStudy (anonymous):
@amistre64 @ash2326 @johnweldon1993 @mathstudent55
13 years ago
OpenStudy (mertsj):
You want me to help you?
13 years ago
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OpenStudy (anonymous):
yes, if you can
13 years ago
OpenStudy (mertsj):
Pick a number.
13 years ago
OpenStudy (anonymous):
3
13 years ago
OpenStudy (mertsj):
Multiply that number by 2
13 years ago
OpenStudy (anonymous):
6
13 years ago
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OpenStudy (mertsj):
Subtract that answer from 30
13 years ago
OpenStudy (anonymous):
24
13 years ago
OpenStudy (mertsj):
Divide that answer by 3
13 years ago
OpenStudy (anonymous):
8
13 years ago
OpenStudy (mertsj):
There you go. If x = 3, y = 8
13 years ago
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OpenStudy (mertsj):
Pick another number
13 years ago
OpenStudy (anonymous):
5
13 years ago
OpenStudy (mertsj):
Multiply that number by 2
13 years ago
OpenStudy (anonymous):
10
13 years ago
OpenStudy (mertsj):
Subtract that answer from 30
13 years ago
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OpenStudy (anonymous):
20
13 years ago
OpenStudy (mertsj):
Divide that answer y 3
13 years ago
OpenStudy (anonymous):
6.66666
13 years ago
OpenStudy (mertsj):
20/3 will do just as well. There you go. If x = 5, y = 20/3
13 years ago
OpenStudy (mertsj):
How many more answers do you need?
13 years ago
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OpenStudy (anonymous):
It is for a realy long word problem in math, and I need whole numbers. I just simplified it for the question on here
13 years ago
OpenStudy (anonymous):
and just 1
13 years ago
OpenStudy (amistre64):
2x + 3y = 30
3 = 2(1)+1 ; gcd(3,2) = 1
2 = 1(2)+0
0
0 1
0-1(1) = -1 ; x' = -1
1
1 0
1-0(1) = 1 ; y' = 1
1 = 2x' + 3y'
30 = 2(30x') + 3(30y')
X = 30x' + 3n
Y = 30y' - 2n
should solve for all the integer solutions
13 years ago
OpenStudy (anonymous):
thank you
13 years ago
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OpenStudy (anonymous):
2x + 3y = 30 represent a line in the x-y plane.so any point on the line will satisfy this condition.So find the solution graphically .Or solve as y=(30-2x)/3 .Put any value in x and you will get a y. hence you can get as many pair as you like..
13 years ago