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

who do scholars believe first wrote Beowulf

An oak tree that is 220 years old produced acorns at two different rates. Until it reached maturity, it produced an average of 900 acorns a year. However, once

You just priced what it would cost to buy vinyl floor tiles at the local tile store. They quoted you $3.29 per tile. When you went home you found the same exact

Jane likes to sunbathe She has read about risks from sunbathing and how to reduce them. She thinks she is not at risk from sunbathing because she has dark skin.

Simplify (7-8i)+(-12-4i)

Signs of Roman decline were manifested by agricultural and economic prosperity which undermined the values of Rome. the weakening of Rome's army which was force

The atomic number of an atom identifies the number of protons in its nucleus. If the overall charge on the atom is neutral, what must the atomic number also ide

simplify : 81s^2/36s^2

how does art inspire some people

How do we solve that problem 1/4(x-3)=3x-11/4x-3