there are 21 marbles in a blue jar. the blue jars has 3 times as many marbles as a red jar. let m be the number of marbles in the red jar
Accepted Solution
A:
Answer:m=7 Step-by-step explanation:1 blue jar = 21 marbles1 blue jar = 3 red jars Therefor21 marbles= 3 red jars(Now let m=1 red jar)21= 3m(Then sine we have 3m dived both sides by 3 to isolate the m)21/3= 3m/37=m