Questions › Category: Math › Johnny has 30 marbles. Mark has m marbles, if Johnny has 10 times as many as mark, 0 Vote Up Vote Down Lisa Howell asked 5 months ago Johnny has 30 marbles. Mark has m marbles, if Johnny has 10 times as many as mark, write an equation that shows how many marbles mark has. Please login or Register to submit your answer Username or Email Address Password Remember Me