Mathematics, 23.01.2021 14:00, kitttimothy55

William got scores of q sub 1, , and q sub 3 on three quizzes. a. Write a formula for the average x of all three quizzes.

b. William got an 85 and an 88 on the first two quizzes. What formula can William use to determine the score he needs on the third quiz to get an average of 90? What score does he need?

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 14:10, javier04052000

Rachel reads 1/5 of the pages of a book plus 12 pages on the first day. on the second day, she reads 1/4 of the remaining pages plus 15 pages. on the third day, she reads 1/3 of the remaining pages plus 18 pages. on the fourth day, she reads the remaining 70 pages. how many total pages are in the book?

Answers: 2

continue

Mathematics, 21.06.2019 20:30, lunax7x7

Astore ordered 750 candles a total wholesale cost of $7910.20. the soy candles cosy $12.17 each and thespecialty candles cost $9.58each. how many of each were bought?

Answers: 1

continue

Mathematics, 21.06.2019 21:30, munch1239

If 1.4% of the mass of a human body is calcium, how many kilograms of calcium are there in a 165-pound man? 1.0 kg ca 5.1 kg ca 1.0 x 102 kg ca 5.1 x 102 kg ca

Answers: 1

continue

Mathematics, 22.06.2019 00:00, ivanmmmm

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.

Answers: 2

continue

Do you know the correct answer?

William got scores of q sub 1, , and q sub 3 on three quizzes. a. Write a formula for the average x...