trevensirboz123 trevensirboz123
  • 01-11-2014
  • Mathematics
contestada

Cory's average score after 8 tests is 91%. If he gets a 78% on his 9th test what will his new average be?
How do i figure out this problem?

Respuesta :

187Blank 187Blank
  • 01-11-2014
You should be able to multiply 91 by 8 to get the sum of the first 8 tests, then add the score on the 9th test. Then to get the average of the sum of the 9 tests you need to divide it by 9.
((91*8)+78)/9=89.555555555555.... So, 90%
Answer Link

Otras preguntas

Imagine that you have never been a cigarette smoker, but suddenly you begin to hang out with a group of people who smoke cigarettes frequently. after a few week
Why isn't thomas jefferson on dollar bills?
4 students equally share 3/4 of a pizza. How much of the pizza does each student get?
Vitamins and minerals are examples of... micronutrients macronutrients enzymes carbohydrates
What is the significance of the vertical columns of the periodic table? what is the significance of the horizontal rows?
You earn $50,000 per year, and the federal tax rate is 10 percent. Your gross income is A. $5,000 B. $10,000 C. $45,000 D. $50,000
The outer boundary of a human cell is the
what body system does addison's disease affect?
Question 1 (Fill-In-The-Blank Worth 1 points) Change this verb from the present tense to the preterite tense. Yo hablo Answer for Blank 1: hable Question 2 (Fi
What blood component makes up to 41% of the bloods volume?