I would love to use substitution (It is simplier that way I guess)
solve your system of equations.
x+2y=−1;x−y=5
Solve x+2y=−1 for x:
x+2y+−2y=−1+−2y(Add -2y to both sides)
x=−2y−1
Substitute (−2y−1) for x in x−y=5:
x−y=5
−2y−1−y=5
−3y−1=5(Simplify both sides of the equation)
−3y−1+1=5+1(Add 1 to both sides)
−3y=6
−3y/−3 = 6/−3(Divide both sides by -3)
y=−2
Substitute (−2) for y in x=−2y−1:
x=−2y−1
x=(−2)(−2)−1
x=3(Simplify both sides of the equation)
So the answer is (x = 3 and y = -2)
The mode is 100 :)
To find the mode, you have to see which number appears the most.
The coordinate of the solution is (2,2)
The pump moves 6 gallons per minute. Hope this is what you wanted.
-log(5.4x10^-9) = 8.27 = 8.3
since 8.3 is greater than 7 it is basic
so the last answer is correct
