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

Mongoose McHuffy has a bike shop. He only has bicycles and tricycles in stock. In total he has 21 items in stock with a total of 51 wheels. Can you tell Mong

workers in an office of 40 staff were asked their favourite take away. the results are summarised in the table. PIZZA - frequency =3 angle = a CURRY - frequency

PLS ANSWER QUICK WITH FULL WORK

1. What is the solution for the inequality 4x < 12?

What an athlete do to increase his stability when he lands on the balance beam from a flip?

a sweater is marked down 15% off the original price. if the original price was $49.00 what is the sale price of the sweater before sales tax

Factor completely 2x2 + 6x − 80. (2x − 5)(x + 8) (2x − 10)(x + 8) 2(x − 5)(x + 8) 2(x − 10)(x + 8)

The number of houses being built each year is modeled by the growth equation, H(=350 20.12. How long will it take for the number of new houses to reach 70,000?

Pleaseee helpp i will let you brainlest

Which expression is equal to 45 x 4-734-27 45 = 4 0