2 years ago

Q and R are independent events. if P(Q)= 1/4 and P (R)= 1/5, find P(Q and R)

Mathematics

1 answer:

Setler79 [48]2 years ago

3 0

Answer:

1/4 * 1/5 = 1/20

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If you can buy 1⁄3 of a box of chocolates for 6 dollars, how much can you purchase for 4 dollars?

alukav5142 [94]

Answer:

2/9 boxes.

Step-by-step explanation:

6 / 1 / 3 = 4 / b

Cross multiply the two

6b = 4/3

Multiply 1/6 on each side

B = 4 /18

It can be reduced to 2/9.

Feel free to let me know if you need more help! :)

5 0

3 years ago

15+9=? (5+3) What number is missing from the expression?

Airida [17]

Answer:

<h3> $\boxed{ \boxed{ \bold{ \mathsf{3}}}}$ </h3>

Step-by-step explanation:

Let the missing number be 'x'

⇒ $\mathsf{15 + 9 = x(5 + 3)}$

Distribute x through the parentheses

⇒ $\mathsf{15 + 9 = 5x + 3x}$

Swap the sides of the equation

⇒ $\mathsf{5x + 3x = 15 + 9}$

Add the numbers

⇒ $\mathsf{5x + 3x = 24}$

Collect like terms

⇒ $\mathsf{8x = 24}$

Divide both sides of the equation by 8

⇒ $\mathsf{ \frac{8x}{8} = \frac{24}{8} }$

Calculate

⇒ $\mathsf{x = 3}$

Hope I helped!

Best regards!

4 0

2 years ago

greg is designing the clock face for a homemade clock. using the center of the clock face as the origin, he places the label 12

Serjik [45]

I apologized that you have not been helped yet, But the answer is (0,-5). Again, I am so sorry that you were not helped properly :)

8 0

3 years ago

Help me please......

lisov135 [29]

Answer:

i believe it would be -3

Step-by-step explanation:

9 + -12 = -3

3 0

2 years ago

Calculate the volume HELP PLEASE ASAP

jeka94

I think the formula for the volume of a cone is V=(1/3) x hπr².

r²= 9

1/3= 0.3

= 0.3 x 4 x 3.14 x 9

= 33.912

5 0

2 years ago