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Ben has a bag of marbles. 4 are blue, 11 are red, and 5 are black. What percent of the marbles

is black?
Step 1: Find the total # of marbles
Step 2: How many are black? Set up a ratio that shows this part/whole relationship
Step 3: Set this equal to x/100
Step 4: Solve for x
25%
Ob
Ос
12%
30%

User Afelisatti
by
7.7k points

1 Answer

6 votes

Answer:

25%

Explanation:

20 marbles total

5 black marbles

5/20 = x/100

x=25

User Hpekristiansen
by
7.7k points

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