SmartBoy56564 SmartBoy56564

08-11-2022
Mathematics

contestada

There are 10 girls and 20 boys in a class.
The class has a test.

The mean mark for all the class is 70
The mean mark for all the boys is 62

Work out the mean mark for the girls.

There are 10 girls and 20 boys in a classThe class has a testThe mean mark for all the class is 70The mean mark for all the boys is 62Work out the mean mark for class=

Respuesta :

Otras preguntas

Why did Otto con Bismarck believe a war with France would help unify Germany? A) He thought that Germany’s close relationship with France was a threat to German

For the following right triangle find the side length x , round your answer to the nearest hundredth

I NEED HELP!!! PLEASE!!!

Alexa invested $54,000 in an account paying an interest rate of 4% compounded continuously. Assuming no deposits or withdrawals are made, how long would it take

cos45*/sec30*+cosec60*

Why are science safety rules important? PLZ DO NOT COPY AND PASTE

explain the systems of the triangular slave trade

Translate Latin from the Regulus Story: Regulus ad urbem Poenorum, a quibus interfectus est, revenerat.

4m+9+m=34 what does m =

What is the relationship between a mutation and a gene? A mutation changes the sequence of DNA bases of a gene. A gene causes a mutation when it manufactures th