Question

A bag contains purple marbles and yellow marbles, 30 in total. The number of purple marbles is 6 more than 3 times the number of yellow marbles. How many purple marbles are there?

Answer 1

96

Explanation:

30*3+6

30 yellow marbles and 3 times the # of yellow +6=

96

Answer 2

Number of yellow marbles = 6

Number of purple marbles = 24

Explanation:

Number of yellow marbles = x

Number of purple marbles = 3x + 6

Total marbles = 30

x + 3x+6 = 30

4x + 6 = 30

4x = 30 - 6

4x = 24

x = 24/4

x = 6

Number of yellow marbles = 6

Number of purple marbles = 3 * 6 + 6 = 18 + 6 = 24