3 years ago

Will took two tests and made an 83% and a 93%. What will he need to make on the next test to have a mean score of 90%

Mathematics

2 answers:

telo118 [61]3 years ago

6 0

Step-by-step explanation:

freeee poiintssssssss

earnstyle [38]3 years ago

6 0

People are so rude and just do it for points i swear He will try and memorize what he did in those tests and be confident for the next one:)!

You might be interested in

State the conditions that the following graph meets. (Enter the equation or inequality that is shown by the graph.)

shutvik [7]

The graph shows a horizontal line intersecting (0, 2).

Your answer is: y = 2.

7 0

2 years ago

Read 2 more answers

A. B. C. D. Help me please

scZoUnD [109]

Answer:

Step-by-step explanation:

An event that is not affected by other events. Example: tossing a coin. Heads or tails is not affected by previous tosses.

8 0

2 years ago

Divide. 456 ÷ 7 64 R 1 64 R 2 65 R 1 65 R 2

umka2103 [35]

Answer:

456/7 equal to (drum rolls) 65.1428571429

Step-by-step explanation:

8 0

3 years ago

QUESTION 3 of 10: Stock returns vary from year to year. The more variance a stock displays the greater the potential risk. These

Dahasolnce [82]

Answer:

The variance of these investment returns is 74

Step-by-step explanation:

Given:

Series = 10, 30, 15, 5, 20

To Find:

variance of a series = ?

Solution:

The variance of the series = $Var\left(X\right)=\sum _{i=1}^n\frac{\left(x_i-\bar{x}\right)^2}{n}$

$\bar{x} = \frac{10+30 +5+15 + 20}{5}$

$\bar{x} = \frac{80}{5}$

$\bar{x} =16$

Now $(x_i -\bar{x})^2 =$ $(10 -16)^2 + (30 -16)^2 + (5 -16)^2 +(15 -16)^2 +(20 -16)^2$

= $(-6)^2 + (14)^2 + (-11)^2 + (-1)^2+ (-4)^2$

= 36 + 196 +121 + 1+ 16

= 370

Now

$Var\left(X\right)=\frac{370}{5}$ = 74

6 0

2 years ago

Read 2 more answers

HELP ME Please THIS Is Really URGENT FOR ME on question 14) ok

Dafna11 [192]

I think 79.45 inches

6 0

3 years ago

Read 2 more answers