theledfords1142 theledfords1142

04-05-2018
Mathematics

contestada

A class has 24 boys and 16 girls. on a test the class mean was 75. the mean of the girls' score was 72. what was the mean of the boys' scores?

Respuesta :

04-05-2018

24+16=40
40*75=3000
16*72=1152
3000-1152=1848
1848/24=77

Answer Link

pottymouth pottymouth

15-11-2018

jhnkjhn jnjhvgfhjvb fcgvgfhcv fcgh jfgch jklk

Answer Link

Otras preguntas

Which of the following is True for valence electrons? A) Valence electrons are always located in the innermost energy level B) Each element in the periodic tabl

In such a spirit on my part and on yours we face our common difficulties. uses analogy. uses metaphor. establishes the speaker's authority. appeals to logic. tr

What is carbon dioxide narcosis?

How do the monarchies of today differ from those that existed centuries ago?

Which sentence uses a verb that agrees with its subject ? A. In the evening the noise of the crickets increase . B. The bananas on the counter are not yet ripe

In "The Tall Woman and Her Short Husband," which of the following best describes how most of the residents in Unity Mansions felt about Mrs. Tall and Mr. Short

Identify the pun on the word "bye" How is it used? From Twelfth night Act 3 scene 1.

How did reconstruction affect daily life in South Carolina.

the layers of earth that accounts for almost 1/2 of the planet

Why did the Emancipation Proclamation free slaves only in Confederate states? (1 point) President Lincoln did not have the authority to remove property from U.S