Fractions problem?
1 Answer
Jul 29, 2018
Explanation:
#"let amount of marbles Dan has "=x#
#"then "1/3(x+28)=4/5x#
#"multiply both sides by 15"#
#5(x+28)=12x#
#5x+140=12x#
#"subtract "5x" from both sides"#
#140=7x#
#"divide both sides by 7"#
#20=x#
#"Dan has 20 marbles and Leah has 48"#
#color(blue)"As a check"#
#4/5xx20=16" and "1/3xx48=16#