You are studying for your final exam of the semester. up to this point, you recieved 3 exam scores of 83%,85%, and 84%. to recieve a grade of b in the class you must average exam score between 80% and 89% for all 4 exams including the final.

find the widest range of scores that you can get on the final exam in order to recieve a grade of b for the class. use interval notation

The widest range lies between [68,100]

Step-by-step explanation:

Given is - to receive a grade of B in the class you must average exam score between 80% and 89% for all 4 exams including the final.

So, the range of the addition of all 4 scores is -

Now given scores addition is =

Now, the widest range of scores that you can get on the final exam in order to receive a grade of B can be found as :

So, the range lies between [68,100]

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls

answer: my brother can figure it out, imma go get him so i can answer : ) edit: my brother is sleeping, sorry man

step-by-step explanation: