There are 36 marbles in a blue jar.The blue jar has 9 times as many marbles as a red jar.Let in be the number of marbles in the red jar.Let in be the number of marbles in the red jar.
Write an equation that relates the number of marbles in the two jars use in nine and thirty six
Let R be the number of marbles in the red jar.
Since the blue jar has 9 times as many marbles as the red jar, the number of marbles in the blue jar is 9R.
Therefore, the equation relating the number of marbles in the two jars is:
9R = 36