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3 years ago

Sarah bought a bike that cost $260. She had a

Mathematics

2 answers:

Aleksandr-060686 [28]3 years ago

6 0

So she paid $205 for the bike hope this helps!

N76 [4]3 years ago

6 0

Answer:

She paid $205 for the bike .

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A cotton candy vendor has 22 cones of blue cotton candy to sell. If the blue cotton candy is 50% of the total number of cones, h

Feliz [49]

44. You can come to this answer by using algebra,
1/2x = 22
Multiply both sides by 2(denominator) thus,
X = 44.
Or you can use lateral thinking and realise that if 22 is 50%, you need to multiply by 2 to reach 100%.

4 0

3 years ago

Read 2 more answers

A single die is rolled one time. Find the probability of rolling a number greater than 4 or less than 3.

Vika [28.1K]

Answer:

The probability of rolling a number greater than 4 or less than 3 is $\frac{2}{3}$

Solution:

In the given question there are two events as follows:

(a) Rolling a number greater than 4 i.e. A = {5,6}

(b) Rolling a number less than 3 i.e. B = {1,2}

Since a die has 6 numbers,

P(A) = $\frac{2}{6}$ where P(A) is the probability of occurrence of event A and P(B) = $\frac{2}{6}$

Since, Event A and Event B has nothing in common therefore they are mutually exclusive events.

P(A∪B) = P(A) + P(B)

$=\frac{2}{6}+\frac{2}{6}$

$=\frac{4}{6}$

$=\frac{2}{3}$

Therefore the probability of getting a number greater than 4 or less than 3 is $\frac{2}{3}$

7 0

3 years ago

The radius of a circle is 4 inches. What is the circle's circumference?

mojhsa [17]

Answer:

8π inches or approximately 25.12 inches

Step-by-step explanation:

What's the circumference of a circle?

❖ The circumference of a circle is the distance around a circle.

How do we find the circumference of a circle?

❖ The formula to find the circumference of a circle is 2πr, where r =

radius. We can solve in terms of pi, or approximate pi to 3.14

Solving

$\pi * 4*2$
$\pi *8$
8π inches

or

$3.14*4*2$
$3.14*8$
25.12 inches

Have a lovely rest of your day/night, and good luck with your assignments! ♡

7 0

2 years ago

Read 2 more answers

In the figare, Linet Intersects parallel Lines m and n.

otez555 [7]

Answer:

Step-by-step explanation:

<2 and <3 are vertically opposite angles and are also congruent. Both the angles are hence called vertical angles.

5 0

3 years ago

You get GPS units from two manufacturers, A and B. You get 43% of your units from A and 57% of your units from B. In the past, 2

defon

Answer:

0.5015 = 50.15% probability that it came from manufacturer A.

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Defective

Event B: From manufacturer A.

Probability a unit is defective:

2% of 43%(from manufacturer A)

1.5% of 57%(from manufacturer B). So

$P(A) = 0.02*0.43 + 0.015*0.57 = 0.01715$

Probability a unit is defective and from manufacturer A:

2% of 43%. So

$P(A \cap B) = 0.02*0.43 = 0.0086$

What is the probability that it came from manufacturer A?

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.0086}{0.01715} = 0.5015$

0.5015 = 50.15% probability that it came from manufacturer A.

4 0

2 years ago