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Vladimir79 [104]
4 years ago
15

There are 25 buttons on a table 10 are blue 15 are red without lokking pick up one button what is the probability that it is red

Mathematics
1 answer:
Paul [167]4 years ago
3 0
Out of the 25 buttons, 15 are red. So we set up the fraction \frac{15}{25}.

(15/25)(4) = 60/100 or 60%

So you have a 60% chance of picking up a red button if 15 out of the 25 buttons are red. 
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A train leaves a station and travels north at a speed of 105105 ​km/h. twotwo hours​ later, a second train leaves on a parallel
hram777 [196]
Let x = hours to meet

train one has a 2 hour head start or 210 km head start

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6 0
4 years ago
The Chandlers are moving across the country. Mr. Chandler leaves 4 hours before Mrs. Chandler. If he averages 70mph and she aver
IRINA_888 [86]

Answer:

It will take 28 hours for Mrs. Chandler to catch up with Mr. Chandler.

Step-by-step explanation:

Given that:

Speed of Mr. Chandler = 70 mph

Distance covered in 4 hours = 70 * 4 = 280 miles

Let,

h be the number of hours.

y be the total distance covered.

y = 70h + 280

Speed of Mrs. Chandler = 80 mph

y = 80h

For catching up, the distance would be same.

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80h - 70h = 280

10h = 280

Dividing both sides by 10

\frac{10h}{10}=\frac{280}{10}\\h=28

Hence,

It will take 28 hours for Mrs. Chandler to catch up with Mr. Chandler.

5 0
3 years ago
Seven less than the product of a number n and 1/6 is no more than 94
antiseptic1488 [7]

Answer:

  • n ≤ 606

Step-by-step explanation:

<u>Seven less than the product of a number n and 1/6 is no more than 94, translating:</u>

  • n*1/6 - 7 ≤ 94

<u>Solving for n:</u>

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4 0
3 years ago
Please help? , no decimals please,please explain to see picture. ​
dalvyx [7]

Answer:

8x\sqrt{3xy

Step-by-step explanation:

7 0
2 years ago
Stepping off a distance by counting your paces is generally a more precise method of measuring than using a measuring tape.
dimulka [17.4K]

Answer:

False

Step-by-step explanation:

It depends on the distance and the curvature of the path. It is a straight line between endpoints and the length is a reasonable multiple of the full length of the tape measure then the tape measure is more accurate.  If on the other hand the terrain is rugged and/or curvy then there isn't much to choose between the two. I think you are intended to answer false. The question leaves a lot to be desired.

5 0
4 years ago
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