First find a common denominator and combine the fractions in the numerator:
Now simplify and cancel out all the terms that you can:
Since the remaining expression is continuous as a function of
, you can directly substitute to end up with
Answer:
x=2 y=-5
Step-by-step explanation:
7x-y=19
2x-3y=19
Multiply the first equation by -3
-3(7x-y)=19*-3
-21x +3y =-57
Add this to the second equation to eliminate y
-21x +3y =-57
2x-3y=19
-----------------------
-19x = -38
Divide by -19
-19x/-19 = -38/-19
x = 2
Now we need to find y
7x-y = 19
7(2) -y =19
14 -y =19
Subtract 14 from each side
14-14 -y=19-14
-y=5
Multiply by -1
y = -5
she needs 10 feet because 6 2/3 yard converted into feet is 20 and 30-20=10
Answer:
C
Step-by-step explanation:
I've done this and I got it right
