Total distance = 380 miles
Let the time & distance of 1st day be = t1 & d1 respectively
Distance = Speed x Time
For second day : d2 = s2 x t2 ; d2 = 60 x t2
For first day : d1 = s1 x t1 ; d1 = 40 x t1
Given : d1 = d2 + 20 & t1 = t2 + 2 , putting these values in d1
d2 + 20 = 40 (t2 + 2)
Putting value of d2 ,
60 t2 + 20 = 40 t2 + 80
60 t2 - 40 t2 = 80 - 20
20t2 = 60
t2 = 60 / 20 ; t2 = 3
So, t1 = 3+2 = 5
Hence : d1 = 40 x 5 = 200 ; d2 = 60 x 3 = 180
Therefore , Total Distance = 200 + 180 = 380
33÷3 Because u gotta find out how many waves pass per minute 33÷3=11 now u do 11×10 because there are 10 minutes and 11 pass every minute 11×10 is 110 hope that helped
Answer:
137/(36π) ft/s
Step-by-step explanation:
The rate of change of volume will be the product of the rate of change of radius and the area of the sphere. The area of the sphere is ...
A = 4πr² = 4π(6 ft)² = 144π ft²
Then the relationship above is ...
dV/dt = A·dr/dt
548 ft³/s = (144π ft²)·dr/dt
dr/dt = (548 ft³/s)/(144π ft²) = 137/(36π) ft/s ≈ 1.2113 ft/s
Simple interest formula
Interest = Pit = $50
P=principal (initial investment)
i=annual interest rate = 0.04
t=time in years = 6 months = 0.5 years
Substitute values,
$50 = P*0.04*0.5
Solve for P
P=$50/(0.04*0.5)=$2500
Answer:
b. the radio of feet to inches
