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3 years ago

Nine children and six adults bought tickets to the circus.

Mathematics

1 answer:

tamaranim1 [39]3 years ago

7 0

Answer:

below

Step-by-step explanation:

9c + 6a = total cost

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HELP IM GIVING 20 POINTS LIKE PLZZ I NEED HELP

maria [59]

Answer:

price = 4.1

cost = 12.3

Step-by-step explanation:

price = 0.8+1.2+1.5+0.6 = p4.1

cost = 2.40+3.60+4.50+1.80 = $12.3

3 0

3 years ago

Let A and B be events with =PA0.7, =PB0.3, and =PA or B0.9. (a) Compute PA and B. (b) Are A and B mutually exclusive? Explain. (

kvasek [131]

Answer:

a) $P(A \cup B) = P(A) +P(B) - P(A\cap B)$

And if we solve for $P(A \cap B)$ we got:

$P(A \cap B) = P(A) + P(B) -P(A\cup B)= 0.7+0.3-0.9 = 0.1$

b) False

The reason is because we don't satisfy the following relationship:

$P(A\cup B) = P(A) + P(B)$

We have that:

$0.9 \neq 0.3+0.7 =1$

c) False

In order to satisfy independence we need to have the following condition:

$P(A \cap B) = P(A) *P(B)$

And for this case we don't satisfy this relation since:

$0.1 \neq 0.7*0.3 = 0.21$

Step-by-step explanation:

For this case we have the following probabilities given:

$P(A) = 0.7, P(B) =0.7, P(A \cup B) =0.9$

Part a

We want to calculate the following probability: $P(A \cap B)$

And we can use the total probability rule given by:

$P(A \cup B) = P(A) +P(B) - P(A\cap B)$

And if we solve for $P(A \cap B)$ we got:

$P(A \cap B) = P(A) + P(B) -P(A\cup B)= 0.7+0.3-0.9 = 0.1$

Part b

False

The reason is because we don't satisfy the following relationship:

$P(A\cup B) = P(A) + P(B)$

We have that:

$0.9 \neq 0.3+0.7 =1$

Part c

False

In order to satisfy independence we need to have the following condition:

$P(A \cap B) = P(A) *P(B)$

And for this case we don't satisfy this relation since:

$0.1 \neq 0.7*0.3 = 0.21$

4 0

4 years ago

Harper sold a $350,000 home. She earned 3% commission. How much did she make off the sale of the home?

Luden [163]

Answer:

10500 dollars

Step-by-step explanation:

350,000 * .03 = 10500

4 0

3 years ago

Q: A: The lowest elevation in the world is in the Dead Sea at 413 feet below sea level. The highest elevation in the world is Mo

NikAS [45]

The answer is 413. Because it says below sea level
hope this helped!

6 0

3 years ago

Draw the circle with equation x² + y² = 16

Mrrafil [7]

Answer:

Below.

Step-by-step explanation:

The center of the circle is at the origin and its radius is √16 = 4.

So set a compass to 4 and draw a circle with the compass point at the origin.

6 0

2 years ago