Let us say that:
s = speed of Donna
s + 2 = speed of April
Then we are also given that:
t + (25/60) = time of Donna
t = time of April
The distance taken by the two should be equal. We know
that distance is the product of speed and time, so:
s * (t + 25/60) = (s + 2) t
We also know that:
(s + 2) * t = 5
s = 5/t – 2
So that:
(5/t – 2) * (t + 25/60) = 5
5 + 125/60t – 2t – 50/60 = 5
25/12t – 2t – 5/6 = 0
Multiply everything by t:
- 2t^2 – 5/6 t + 25/12 = 0
t^2 + 5/12 t = 25/24
Completing the square:
(t + 5/24)^2 = 25/24 + (5/24)^2
t + 5/24 = ± 1.04
t = -1.25 h, 0.83 h
Since time cannot be negative, therefore t = 0.83 h
So,
(s + 2) * t = 5
s + 2 = 5/0.83 = 6 miles per hour
s = 4 miles per hour
Answers:
speed of Donna = 4 miles / hr
speed of April = 6 miles / hr
1/2 = 7/14
3/7 = 6/14
7/14 + 6/14 = 13/14
Shaded Area: 1/14
8 goes into 72 and 8
72÷8=9
8÷8=1
Answer:
5 perpendicular and 4 parallel line segments so more perpendicular
Perpendicular means "at right angles". A line meeting another at a right angle, or 90° is said to be perpendicular to it. And Parallel Lines or parallel Segments are always the same distance apart, they will never meet. And in this shape there are four parallel line segments and five perpendicular
Answer:
The total change in value of her shares is $300
Step-by-step explanation:
Given that each share went up by $10 and she has 30 shares then the total change in the value of her shares is the product of the change in the price of each share and the total number of shares she has
= $10 * 30
= $300