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a bag contains 6 blue marbles 5 yellow marbles 3 white marbles and 1 red marble. what is the probability of not selecting a white marble

User Perkins
by
8.8k points

2 Answers

4 votes

Answer:


(4)/(5)

Based on the given conditions, formulate:


1-(3)/(6+5+3+1)

Calculate the sum or difference


1-(3)/(11+3+1)


1-(3)/(14+1)


1-(3)/(15)

Cross out the common factor


1-(1)/(5)

Find common denominator and write the numerators above common denominator


(5)/(5)-(1)/(5)

Write the numerators over common denominator


(5-1)/(5)

Calculate the sum or difference


(4)/(5)

I hope this helps you

:)

User Pavlovich
by
7.4k points
9 votes

Answer:

probability: 4/5

Step-by-step explanation:

total marbles: 6 + 5 + 3 + 1 = 15 marbles

\\ not picking white marbles means, picking other marbles except white \\

solve:


\hookrightarrow \sf (15-3)/(15)


\hookrightarrow \sf (12)/(15)


\hookrightarrow \sf (4)/(5)

User Anzil KhaN
by
7.9k points

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