How do you do 6.39÷0.09
2 answers:
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Answer:
Therefore the co-ordinate of the point A is (-4,-3)
Step-by-step explanation:
If A(x₁,y₁) and B(x₂,y₂) is divided by a point in ration m:n internally.
Then the co-ordinate of the point is .
Given two points are P(-7,-5) and Q(5,3).
A point A on PQ, that divides PQ into a ratio of 1:3.
Since the point A lies on the PQ.
Therefore it divides the line segment PQ internally.
Here x₁= -7,y₁= -5 , x₂= 5,y₂ =3, m=1,n=3
Therefore the co-ordinate of the point A is
=(-4,-3)
Answer:
Train A - 50 miles per hour
train B - 30 miles per hour
Step-by-step explanation:
Let x mph be the speed of the train B, then the speed of the train A is (x+20) mph.
In 3 hours,
- train A travels 3(x+20) miles
- train B travels 3x miles
In total, they covered the distance of 240 miles, so