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3 years ago

11

In a class of 22 students, 13 have a brother and 15 have a sister. There are 3 students who do not have any siblings. What is th

e probability that a student has a brother given that they do not have a sister?

1 answer:

Aneli [31]3 years ago

7 0

Answer:

1/4

Step-by-step explanation:

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Free_Kalibri [48]

Answer:

21 students

Step-by-step explanation:

28÷4=7

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6 0

3 years ago

Read 2 more answers

{2x + 3y = 5}{ y= 5 x -4}

Natasha_Volkova [10]

Solve the system using substitutions:

$\begin{gathered} 2x+3y=5 \\ 2x+3(5x-4)=5 \\ 2x+15x-12=5 \\ 17x=5+12 \\ 17x=17 \\ x=\frac{17}{17} \\ x=1 \end{gathered}$

x has a value of 1. Use this value to find the value of y.

$\begin{gathered} y=5x-4 \\ y=5\cdot1-4 \\ y=5-4 \\ y=1 \end{gathered}$

y has a value of 1.

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1 year ago

Evaluate the expression 5x-3x+5 for each value of x

kirza4 [7]

Answer:

2x+5

Step-by-step explanation:

Hope I helped :)

4 0

3 years ago

Evaluate if m = 16 and p = 2. 1/2m + 3p

Lunna [17]

Answer is 14

EXPLANATION:

(1/2)(16)+(3)(2) =

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3 years ago

Slimpfy 48 show all steps

chubhunter [2.5K]

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3 years ago