If the scores on previous tests were 84, 85, 87, and 99, what is needed on the next test to have a 90 average exactly?

95

Step-by-step explanation:

Given data

Number of scores =5

84, 85, 87, and 99

Let the next score be x

Mean =90

So

Total score =84+85+87+99+x

Total score =355+x

Mean=total score /number of score

90=355+x/5

90*5=355+x

450=355+x

450-355=x

x=95

if you use photomath right away it will give you the answer not like this app that you have to wait for people.

the red lines denote the population of the bacteria after 35 hours. that would be 2,409.24. the y-intercept is the blue line which is 800 because that is the starting point. the equation used to make the graph is 800(1.032)^h, where h is the number of hours.

step-by-step explanation: