Answer:
E
Step-by-step explanation:
Label the two equations:
4p +3q +2r= 3 -----(1)
-4p -2q -2r= 4 -----(2)
(1) +(2):
4p +3q +2r -4p -2q -2r= 3 +4
Grouping like terms together:
4p -4p +3q -2q +2r -2r= 7
Simplify:
q= 7
1. 2x-10=0
+10
2x=10
/2 /2
X=5
2. 4x+1=0
-1
4x=-1
/4 /4
X=-0.25
27,36,45 are bigger than 20
Answer:
I need the question first then I can help you I am pretty good with rounding
Step-by-step explanation: