Solve 5m − 3h = 45 for h. show your work.

h =  .

Step-by-step explanation:

Given  :  5m − 3h = 45.

To find : Solve  for h.

Solution : We have given 5m − 3h = 45.

On subtracting both sides by 5m.

- 3h = 45 - 5m.

On dividing both sides by -3 .

h = .

h = .

h =  .

Therefore , h =  .

2/3

step-by-step explanation:

irst, find the z score of a score of 80. this is given by the formula z = (x-u)/o, where x is the score, u is the mean, and o is the standard deviation. this gives

z = (80-78)/12 = 1/6 = .1667

now, find what percentile a z score of 1/6 correlates to in the normal distribution.

a z score of 1/6 = .1667 is equivalent to the 56.36th percentile of the distribution. so the probability a score is over this is 1-.5636 = .4364

the mean of a sample mean is equal to the original mean. however, the standard deviation of a sample mean is equal to the original standard deviation divided by the square root of n (sample size). so the new standard deviation is 12/sqrt(16) = 3.

the new z score is 80-78/3 = 2/3 = .667. this is equivalent to the 74.86th percentile. so the probability that the mean will be greater than this score is 1-.7486 = .2514.