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

Spelling Can you please help me it will math the day better for me

4. You wake up in the morning and go to the cupboard to look for breakfast. You have a choice of Pop-Tarts, muffins, granola bars, or cereal. To drink, you have

The numbers in any column row or diagonal in the gird below multiply to give an answer of 1 complete the grid

How do I decorate a room to look like 1999 for a parent?

An urgent. Please answer this. :)1 & 2 are Ω3 & 4 are V

name the diseases that is caused by in lack of vitamin C,D and iodine

Write a formula that shows the dependence of: the length of the side (a) of a cube on the surface area (S) of the cube Write the formula for the parabola that h

The perimeter of an equilateral triangle is p and the length of a side is s. The formula for s is s = p = 3 Find the length of a side when the perimeter is 21 c

what is a water cycle

Find the value of X And tell whether the side lengths form a Pythagorean triple