To get a b in math, alexandria pappas must average 80 on five tests. scores on the first four tests were 84 , 74 , 83 , and 79 . what is the lowest score that she can get on the last test and still get a b?

If she gets a 78, her average would be a 79.6, rounding up to a "b", but without rounding and getting a solid 80, she would have to get an 80 on her next test. (the answers given are positive integers (no decimals) by the way)

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5

entering that problem on the tube might get you an answer