Stacy rowed across the lake with her friend Rainey (in the same boat) at a rate of 3 mph. Rainey then rowed back at a rate of 2
mph. If the lake is 6 miles across, how long did it take them to complete their trip?
2 answers:
Velocity in the direction of crossing the river = 3mph
Velocity in the backward direction = 2mph
Net velocity in forward direction = (3-2)= 1mph
Distance = 6 miles
t = ?
Velocity = Displacement/Time
1 = 6/t
t = 1/6 hr
t = (1/6)×60 min
time = 10 minutes
Hope this helps you!
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Answer:
The volume of a right circular cylinder is calculated by a function of two variables,
where x is the radius of the right circular cylinder and y represents the height of the cylinder. Evaluate V(2, 5) and explain what this means
Solution:
<u>Note that:</u>
- Han's house = 450 m from school
- Lin's house = (450 - 135) from school
<u>Looking at the options, we can tell that the letter "z" represents Lin. </u>
- => z = (450 - 135)
- => z = 450 - 135
This option matches with Option D.
Option D is correct.
Answer:
1184.5
Step-by-step explanation:
150+400+180+300=1030
1030 × 15% = 154.5
(15% is also 0.15)
1030 + 154.5 = 1184.5
I hope this helps you :)
I'm terrible at math, so I'm sorry if I'm totally wrong, but I'm assuming you just take the average:
20+28=48m
48/2=24m
On average, it may take them 24m if they work together.
