Kevin earned a score of 150 on Exam A that had a mean of 200 and a standard deviation of 25. He is about to take Exam B that has a mean of 450 and a standard deviation of 40. How well must Kevin score on Exam B in order to do equivalently well as he did on Exam A? Assume that scores on each exam are normally distributed.

.there can be infinite values of m and n that can satisfy the above equation. for each value of m of m or n. there maybe infinite sets of solution for the above

step-by-step explanation:

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

144.50

step-by-step explanation:

21.5 x 13.4=288.10 divide by 2