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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

Sagot :

Answer:

probability: 4/5

Explanation:

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

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

solve:

[tex]\hookrightarrow \sf \dfrac{15-3}{15}[/tex]

[tex]\hookrightarrow \sf \dfrac{12}{15}[/tex]

[tex]\hookrightarrow \sf \dfrac{4}{5}[/tex]

Answer:

[tex]\frac{4}{5}[/tex]

Based on the given conditions, formulate:

[tex]1-\frac{3}{6+5+3+1}[/tex]

Calculate the sum or difference

[tex]1-\frac{3}{11+3+1}[/tex]

[tex]1-\frac{3}{14+1}[/tex]

[tex]1-\frac{3}{15}[/tex]

Cross out the common factor

[tex]1-\frac{1}{5}[/tex]

Find common denominator and write the numerators above common denominator

[tex]\frac{5}{5}-\frac{1}{5}[/tex]

Write the numerators over common denominator

[tex]\frac{5-1}{5}[/tex]

Calculate the sum or difference

[tex]\frac{4}{5}[/tex]

I hope this helps you

:)