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

Which of the following statements about the Earth’s atmosphere is true? A. In the past few decades, carbon dioxide levels have been rising. B. In the past

Which two design elements can be found in the U.S. flag? balance and pattern pattern and rhythm emphasis and unity

How was the problem with the 1800 presidential election resolved? A. congress broke a tie between John adams and thomas jefferson. B. All voters had to vote a s

Each of 25 students in group A read for 45 minutes. Each of 21 students in group B read for 48 minutes. Which group read from more minutes explain

People of all backgrounds were invited to live in colonial Pennsylvania, free from persecution. How do you think that affected religious practices in the colony

About what percentage of the slaves were sent to the United States?

Please explain how an increase in water vapour might result in a positive feedback loop

Environmental sociology is concerned with _______

Which best describes how Aaron feels when he and Zlateh are trapped by the snowstorm?

What do you make when you hit a rock with a hammer