Answer:4
Step-by-step explanation:
Answer:
(x, y) = (5, 1)
Step-by-step explanation:
To <em>eliminate</em> x, you can double the second equation and subtract the first.
... 2(x +4y) -(2x -3y) = 2(9) -(7)
...11y = 11 . . . . . simplify
... y = 1 . . . . . . divide by 11
Using the second equation to find x, we have ...
... x + 4·1 = 9
... x = 5 . . . . . subtract 4
_____
<u>Check</u>
2·5 -3·1 = 10 -3 = 7 . . . . agrees with the first equation
(Since we used the second equation to find x, we know it will check.)
Answer:
Step-by-step explanation:
This is the answer because it is subtracted so that you get the answer
Assign x as the number of females.
Since makes are six times more: 6x is the male variable.
In total there are 7x students.
So the fraction for males is : 6/7
There's no way to simplify further because there's no term common to both the denominator/numerator.
Answer: 6/7
