Algebra 1
posted by Ley .
What is an equation of a line perpendicular to the line with equation
y = 1  3x
a.y=3x + 5 b. y=3x + 5
c.y=1/3x + 5 d. y=1/3x + 5
To solve the linear system below, which substitution of unkowns is proper ?
x + 4y= 6
5x  3y = 16
a. substitute 4y6 for x in the first equation
b. substitute 4y  6 for x in the second equation
c.substitute 3y + 16 for x in the second equation
d. 4y  6 for x in the second equation
What is the solution of the equation
3(1/4x  1/4)= 4x  1 ?
Using the formula for interest, I = Prt, solve for r.
please solve these problems clearly so I can follow and understand them, thank you .

I'll check your answers.
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