Hniininnii Hniininnii

03-11-2014
Mathematics

contestada

There are 21 males in the algebra 1 class. If 75% is female, how many students are there in the class?

Respuesta :

03-11-2014

[tex]x-\ female\\\\ y-all\ students\\\\ z=21\\ x=0,75y\\\\ x+z=y\\ 0,75y+21=y\ \ \ |subtract\ 0,75y\\ 21=0,25y\ \ \ | divide\ by\ 0,25\\y=84\\\\There\ are\ 84\ students\ in\ class.[/tex]

Answer Link

Otras preguntas

the water on the earth today has been sustaining life for millions of years. true or false.

drug abuse can often lead to suicide because __________.

Hydrogen gas (H2) and chlorine gas (Cl2) react to form hydrochloric acid (HCl). What is the correct balanced chemical equation for this reaction?

what is the slope of a line

Which type of bond will most likely be found in HBr? an ionic bond a metallic bond a polar covalent bond a nonpolar covalent bond

A scientist has inserted a gene into a plasmid. Which enzyme should she use to join the sticky ends of the gene and the plasmid? restriction enzyme ligase RNA p

a tool that is regularly sold at 18.50 is on sale for 20% off how much is the sales price

Which one of the following statements is most accurate for law enforcement? A. Law enforcement agencies are employed by the court system. B. There is no count

How do you find the slope of a line perpendicular to a given line?

what does the word emphasis mean in design?