Answer:Option (ii) is correct i.e. 20mph and 24mph
Step-by-step explanation:
Let us assume that the two riders are A and B
A B
Let speed of A be v mph then speed of B will be (v+4)mph
Time taken by A =3h Time taken by B=3-0.5= 2.5h
Since distance travelled by both is the same
Distance=
Dividing both sides by 0.5
v=
mph
i.e Speed of A=20mph
∴ Speed of B=20+4 =24mph
Sure multiple by (3-5i)/(3-5i). Keep in mind i^2 is equal to -1. can you do the rest?
Answer:
2y -8
Step-by-step explanation:
−2y−8+4y
Combine like terms
-2y +4y -8
2y -8
Simply draw a line which contains points A, B, C, and D, all on the same line.