1,076 (the original thickness) - 22.7 meters (loss per year) * 7 (lost 22.7 meters per year for seven years, so multiply the loss per year by the amount of years) = 917.1 (the size after 7 years)
A.K.A 1,076 - 22.7 * 7 = 917.1
You multiply both sides of the equation by 3.7 to isolate p, the variable. You should get 18.87
Hope this helps
Answer:
x=11/2
Step-by-step explanation:
1/2x-4=7+1/6x
1/2x-1/6x=7+4
6*1/2x-1/6*6=11 As 6 is the Lcm and we have to multiply it to the fractions.
3x-x=11 As 6 divided by 2 is 3 and 3 multiplied by x is 3x.
2x=11
x=11/2 OR 5 1/2
Answer:
0.081,0.2621,0.645,0.919
Step-by-step explanation:
Let X be the average speed of a car driving down freeway
Given that X is normal with mean as 70mph with a standard deviation of 5mph.
To convert to Z score we do

a) the probability that a randomly selected car is driving more than 77mph

b) probability that a randomly selected car is driving between 65 and 69 mph
= 
c) the probability that a randonly selected car is driving between 67 and 77mph
=
d) the probability that a randomly selected car is driving less than 77mph
