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3 years ago

Can you help please?

Mathematics

2 answers:

sesenic [268]3 years ago

8 0

-5/2 I learn this like last year but don’t quote me on it

lina2011 [118]3 years ago

5 0

-5/2

an example of how to write it is :)

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J'ai un problème de math que je n'arrive pas à résoudre:

irga5000 [103]

Answer:

english pleaase for my effort

Step-by-step explanation:

Translate this to english pls

5 0

3 years ago

A toy manufacturer uses 90 pints of plastic to make 600 action figures. If they use 810 pints of plastic in an 8 hour shift, how

lutik1710 [3]

Answer:

The number per hour = 5400 ÷ 8 = 675 action figures

Step-by-step explanation:

* Lets explain how to solve the problem

- A toy manufacturer uses 90 pints of plastic to make 600 action figures

- they use 810 pints of plastic in an 8 hour shift

- To find how many action figures are made per hour we must to find

how many action figures in an 8 hour shift and then find the number

of the action figures per hour

∵ The toy manufacture uses 90 pints of plastic to make 600 action

figures

∵ They use 810 pints

- Lets find how many action figures are made by this numbers of pints

∴ 90/600 = 810/x ⇒ x is the number of action figures

- Use the cross multiplication to find x

∴ 90 x = 810 × 600

∴ 90 x = 486000 ⇒ divide both sides by 90

∴ x = 5400

∴ They will use 810 pints to make 5400 action figures

∵ They use 810 pints in an 8 hour shift

∴ They make 5400 action figures in 8 hours

- To find the number of the action figures per hour divide the number

of them in 8 hours by 8

∴ The number per hour = 5400 ÷ 8 = 675 action figures

8 0

3 years ago

For every bag of trail mix the local Scout Guide troop sells,they earn $0.45. write an expression to represent this situation.

nikitadnepr [17]

T = trail mix Q= quantity (T*Q)*0.45=X X = total money earned

5 0

3 years ago

3. Use Structure Shari is drawing a tree diagram

Alborosie

The sample space of Shari's tree diagram is the total possible outcomes of rolling the game piece and spinning the pointer.

It doesn't matter if Shari starts with the spinner or the game piece

<h3>How to determine the tree diagram</h3>

The experiment involves:

Rolling a 12-sided game piece
Spinning the pointer of a 4-section spinner

If Shari starts with the game piece, the sample size (n) would be:

n = 12 * 4

n = 48

If Shari starts with the spinner, the sample size (n) would be:

n = 4 * 12

n = 48

Notice that the sample size remains unchanged irrespective of what he starts with

Hence, it doesn't matter if Shari starts with the spinner or the game piece

Read more about tree diagram at:

brainly.com/question/2581880

3 0

2 years ago

According to the Stack Overflow Developers Survey of 20184, 25.8% of developers are students.The probability that a developer is

murzikaleks [220]

Answer:

0.0326 = 3.26% probability that she is a student.

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: Woman developer

Event B: Student

Probability that the developer is a woman:

7.4% of 25.8%(students).

76.4% of 100 - 25.8 = 74.2%(not students). So

$P(A) = 0.074*0.258 + 0.764*0.742 = 0.58598$

Student and woman developer.

7.4% of 25.8%(students), so

$P(A \cap B) = 0.074*0.258 = 0.019092$

If we encounter a woman developer, what is the probability that she is a student

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.019092}{0.58598} = 0.0326$

0.0326 = 3.26% probability that she is a student.

5 0

3 years ago