Question 816333: the ratio of boys to girls in an art class is 3:5 there are 12 boys in the class how many girl are in the class Found 3 solutions by stanbon, ewatrrr, TimothyLamb:Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website! the ratio of boys to girls in an art class is 3:5 there are 12 boys in the class how many girl are in the class
-------
3:5 is the same as 3x:5x where 3x = # of boys ; 5x = # of girls.
-------
Equation:
3x = 12
x = 4
-----
# of girls = 5x = 5*4 = 20
===========
Cheers,
Stan H.
=========== Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
Hi,
the ratio of boys to girls in an art class is 3:5
there are 12 boys in the class how many girls 'x' are in the class | Cross Multiplying to solve
3x = 60
x = 20 girls
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website! b/g = 3/5
g = (5/3)b
---
g = (5/3)b
g = (5/3)12
---
g = 20
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Convert fractions, decimals, and percents:
https://sooeet.com/math/fraction-decimal-percent.php
---
Calculate and graph the linear regression of any data set:
https://sooeet.com/math/linear-regression.php