Answer:
80
Step-by-step explanation:
Answer:
Inequality Form:
11<x<19
Interval Notation:
(11,19)
Step-by-step explanation:
Answer:
225.5
Step-by-step explanation:
220 + (2.5% × 220) =
220 + 2.5% × 220 =
(1 + 2.5%) × 220 =
(100% + 2.5%) × 220 =
102.5% × 220 =
102.5 ÷ 100 × 220 =
102.5 × 220 ÷ 100 =
22,550 ÷ 100 =
225.5
Subtract -9 from both sides.
x2+6x−(−9)=−9−(−9)
x2+6x+9=0
Factor left side of equation.
(x+3)(x+3)=0
Set factors equal to 0.
x+3=0 or x+3=0
x=−3
Answer:
x=−3
