yutikac yutikac

13-12-2022
Mathematics

contestada

There are 21 boys and 29 girls in a class.
The boys and the girls have some pens.
The mean number of pens that the boys have is 21.
The mean number of pens that the girls have is 18.

Work out the mean number of pens the 50 children have.

Respuesta :

Otras preguntas

Select four organic items. water iron bacteria plastic rice leather concrete cotton

A 2000kg car traveling at 30 m/s runs into a large oak tree and comes to an abrupt stop in 2 seconds. What is the force of impact?

Definition of candidiasis/bacterial vaginosis

which of the following was an element of the ussr’s constitution

A bus traveling at a constant speed took 1 minute 48 seconds to travel the distance between a certain exit and the beginning of a roadwork area. If the distance

Fusion is a fast-growing clothing chain that focuses on teenagers. Julie, the owner and founder of Fusion, consults with her employees on a daily basis for sug

3) At STP, a 22.4-liter sample of NH3(g) contains the same number of molecules as A) 11.2 L of H2(g) B) 22.4 L of CO2(g) C) 33.6 L of CH4(g) D) 44.8 L of O2(g)

at a hot dog stand is irregular and footlong hot dogs at a ratio of 5 to 3 based on this ratio how many footlong hot dogs will be served if there are a total of

Please please someone help me and please show your work

Kevin conducted a study on whether the length of the line at a local Starbucks affected how well the customers enjoyed their coffee after receiving it. Malcolm