Let x represent number of hours after noon.
We have been given that Sara starts at noon and walks at a speed of 4 miles per hour. So distance covered by Sara in x hours would be .
We are also told that Eddie leaves the same place an hour later. This means that Sara will be 4 miles ahead of Eddie as Sara will travel 4 miles in 1 hour.
As Eddie walks in the same direction at a speed of 5 miles per hour. So distance covered by Eddie in x hours would be .
Total distance covered by Sara when Eddie will start would be .
Now we will equate distance covered by both in x hours as:
Let us solve for x.
Since x represents number of hours after noon, so 4 represents 4 hours after noon.
Therefore, Eddie will catch up with Sara at 4:00 pm and option D is the correct choice.
Answer:
(b)
Step-by-step explanation:
Under a reflection in the y-axis
a point (x, y ) → (- x, y ), hence
P(4, 1 ) → P'(- 4, 1 )
Q(2, - 8 ) → Q'(- 2, - 8 )
R(- 8, 1 ) → R'(8, 1 )
Answer:
positive, left, positive, -9
Step-by-step explanation:
Answer:
16:12:13
Step-by-step explanation:
A C T
32 24 <u> </u><u>2</u><u>6</u><u> </u>
÷2
16 12 13
34+24= 58
84-58= 26
Answer:
11 with 3 left over
Step-by-step explanation:
4 x 20 = 80
80 / 7 = 11 with remainder of 3