Answer:
-0.10
Step-by-step explanation:
-.25--.5+.4+-.75
-.25+.5+.4-.75
.25+.4-.75
.65-.75
-0.10
Solution of linear system: (-5, -8)
It took Andre and Lin 1.5 hours for them to meet.
Speed is the ratio of distance travelled to total time taken. Speed is given by:
Speed = distance/time
Let d₁ represent the distance covered by Andre at time t and d₂ represent the distance covered by Lin at time t.
Hence:
5 = d₁/t
d₁ = 5t
3 = d₂/t
d₂ = 3t
Andre and Lin are 12 miles apart, hence:
d₁ + d₂ = 12
5t + 3t = 12
8t = 12
t = 1.5 hours
It took Andre and Lin 1.5 hours for them to meet.
Find out more on speed at: brainly.com/question/3004254
The polar coordinate system.
If the square of a=121, then a=11