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2. A glass container has 120 marbles of different colors. There are 30 green marbles and 15 red marbles. The number of yellow marbles is three times as many as the red marbles. Anthony takes 18 green marbles and replaces them with 25 yellow marbles.

a. What fraction of the marbles is green?
b. What fraction of the marbles is yellow?
c. What fraction of the marbles is red?

Sagot :

Answer:

a.1/10

b.7/12

c.1/8

Step-by-step explanation:

Step 1. find the total number of yellow marbles: 15 x 3 = 45

Step 2. subtract 18 from 30 = 12

Step 3. add 25 to 45 = 70