3 5/10 - 2/5
35/10 - 2/5
35/10 - 4/10
31/10=3 1/10 or 3.1
First time 23 words
after week 26 words
after two weeks 29 words
so after 1 week Alfred is faster on 3 words
so after 4 weeks he could type 35 words per minute
1/4x-2 because you subtract the x from both sides, then you add 8 to both sides. Next you divide both sides by -4 to get y=1/4x-2
You are told that y=-5, so just use that value for y in the second equation...
5x+4(-5)=-20
5x-20=-20
5x=0
x=0 so the solution, when the lines intersect, is the point (0,-5)
Answer:
-4a
Step-by-step explanation:
5a + -9a = -4a
hope this helps