John scored 75, 82, 66, and 78 on his history tests. what score must john get on his next test in order to have a mean score of 76?

In the next test John must get

Step-by-step explanation:

Let

x------> the score in the next test

we know that

The formula to calculate the mean is the sum of the scores divided by the number of test

so

Solve for x

e^-kt = n/n0 = 0.79  

-kt = ln 0.79  

t = - ln 0.79/0.0001  

= 2357 years

step-by-step explanation:

ιт ιѕ:

125.28

нσρє ι ¢συℓρ нєℓρ