Brad scored 87, 71, 72, 74 and 86 on his five tests during the semester. The average of those scores count for two thirds of his final grade. He has a final exam at the end of the semester that will count for the other one-third. To get a B. his final grade must be greater than or equal to 80 and less than 90 Solve for the range of grades x that he could score on his final exam that would result in him getting a B. Give your answer as an inequality Assume that 100 is the greatest possible grade .

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.

answer: the value of x is 7cm

step-by-step explanation:

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: