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Mkey [24]
3 years ago
9

Calculate the distance the train will travel in 3/4 hour.

Mathematics
1 answer:
polet [3.4K]3 years ago
3 0

Answer:

what is the speed of the train? if that is miles per hour just figure out what 75% is of that number

Step-by-step explanation:

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A wheel has a radius of 15 cm. Approximately how far does it travel in 4 revolutions?
ArbitrLikvidat [17]
Radius is 15 cm
Circumference = 2 pi r
C = 2 x 3.14 x 15cm
C = 94.2 cm
94.2 cm x 4 (revolutions) = 376.8 = D
7 0
3 years ago
Pls answer ;-;
Svetach [21]

Answer:

The second one (2) is a lie

Step-by-step explanation:

The quantities are all proportional, with 4 donuts costing one dollar being consistant. With this, we can multiply the amount of donuts to 40, and through what we know, we can find that the donuts will cost 10 dollars. This leaves only (2) left.

6 0
3 years ago
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Y= 3x+13<br> y=x-3 <br> How do you solve this equation?
ra1l [238]

Answer:

x=-5 & y=-2

Step-by-step explanation:

y= 3x+13

y= x-3

x-3=3x+13

-3=2x+13

-10=2x

x=-5

then

y=3(-5)+13

y=-15+13

y=-2

6 0
3 years ago
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16. You deposit $468 into a mutual fund account. It decreases in value by 1% per week for six
raketka [301]

Answer:

V(m)=320 (1.005).

Step-by-step explanation:

5 0
3 years ago
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Photos and videos have become an important part of the online social experience, with more than half of Internet users posting p
klasskru [66]

Answer:

0.82

Step-by-step explanation:

Given:

<em>A</em> be the event that an Internet user posts photos taken by themselves.

<em>B</em> be the event that an Internet user posts photos taken by themselves.

P(A) = 0.47

P(A) = 0.28

P(A or B) = P(A\cup B) = 0.52

To find:

Conditional probability that an Internet user posts photos given that they post videos.

OR

P(A/B) = ?

Solution:

<em>Formula </em>to be used to find the required conditional probability:

P(A/B) = \dfrac{P(A \cap B)}{P(B)}

For this, P(A \cap B) is required.

<em>Formula</em>

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

0.52=0.47+0.28-P(A\cap B)\\\Rightarrow P(A\cap B)=0.23

Now, the required conditional probability is:

P(A/B) = \dfrac{P(A \cap B)}{P(B)}\\\Rightarrow P(A/B) = \dfrac{0.23}{0.28}\\\Rightarrow \bold{P(A/B)} = 0.82}

So, the answer is <em>0.82</em>.

5 0
4 years ago
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