The equation 3c=4s gives the relationship between c, the weight of clay ,and s the weight of sand in a mixture .There are 6.25 pounds of clay in the mixture . what is the weight of the sand?
So we have
3 (6.25) = 4s divide both sides by 4
(3/4) (6.25) = s
s = 4.6875 lbs.
