Respuesta :
Answer:
There should be 114 red marbles
Step-by-step explanation:
19 (red marbles) x 6 (sets of red marbles) = 114, plus 6 black marbles = 120 marbles.
Answer:
114 red marbles
Step-by-step explanation:
Red : Black
19 : 1
Out of every 20, there are 19 red
19/20 × 120 = 114