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3 years ago

Please help!!! Math 10 points!

Mathematics

2 answers:

Anni [7]3 years ago

7 0

Answer:

2nd one would be 20, 3rd one would be 6, 4th one would be 54, and the last one would be 18. hope that helped !

Step-by-step explanation:

If a printer is printing 15 papers in 3 minutes, all you have to do is divide 15 by 3, and you get you answer. The answer would be 5 which you would mulitply by the bottom number or divide by the top number.

zheka24 [161]3 years ago

4 0

Answer:

First Blank: 20 photos

Second Blank: 6 minutes

Third Blank: 45 Photos

Fourth Blank: 10 minutes.

Step-by-step explanation:

4*5=20 Photos

30/5=6 Minutes

9*5=45 Photos

50/5=10 Minutes

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3 years ago

Read 2 more answers

A marble is randomly selected from a bag. The probability of selecting a marble with dots on it is 0.2. The probability of selec

marin [14]

Answer:

0.5

Step-by-step explanation:

Let D be the event of selecting a marble with dots.

Let P be the event of selecting a purple marble.

The probability of selecting a marble with dots, P(D)=0.2

The probability of selecting a marble that is both purple and has dots, $P(D \cap P)=0.1$

We want to determine the probability of selecting a purple marble given that the marble has dots on it, P(P|D)

By the definition of conditional probability:

$P(P|D)= \dfrac{P(P \cap D)}{P(D)} \\= \dfrac{0.1}{0.2}\\ =0.5$

The probability of selecting a purple marble given that the marble has dots on it is 0.5.

4 0

2 years ago

Nate and his friends are building a skateboard ramp for an upcoming contest. The length of the ramp on the blueprint is 7.6 inch

ICE Princess25 [194]

Answer:

30.4 feet.

Step-by-step explanation:

We have been given the length of the ramp on the blueprint is 7.6 inches. The scale on the blueprint is 1 inch to 4 feet. We are asked to find the actual length of the ramp.

We will use proportions to solve our given problem as:

$\frac{\text{Actual length}}{\text{Scale length}}=\frac{4\text{ ft}}{1\text{ inch}}$