Answer:
-3/2
Step-by-step explanation:
So we have the equation:
Distribute the left:
Subtract 20 from both sides:
Divide both sides by 12:
So, our answer is -3/2 or -1.5.
And we're done!
Answer:3x-x+2=4
Step-by-step explanation: i think
Mark had 6 pints of milk.
90-58 = 9y+5
32 = 9y+5
27 = 9y
y = 27/9
y= 3 degrees.
Answer:
∠P = 39º
∠Q=120º
∠R = 21º
Step-by-step explanation:
m∠P+m∠Q+m∠R=180º (sum of ∠s in a triangle)
2x-3+6x-6+x=180º (substitution)
9x-9=180º (algebra)
9x=189º (algebra)
x=21º (algebra) (this is ∠R)
(2x-3)=39º (algebra) (this is ∠P)
6x-6=120º (algebra) (this is ∠Q)