Using substitution:
first you have to express one variable in terms of the other, in this we can express y in terms of x:
Since both expressions are equal to y, you have to equal both expressions like this:
Now you can solve the equation:
Knowing x=10, you can use any of the expressions we found before to find y. In this case I'm going to use y= -x+9 because it's simpler but boy should give you the same result
So, the answer is x=10 and y=-1
Answer:
Step-by-step explanation:
3 hours and 10 minutes hope this helps :D
The square root is
Just square the top and bottom of the fraction.
and
so we have 12/16 and then we reduce to 3/4
Median is the middle of the number set so
5 8 10 20 25 30 35 40 45
its 25