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Lyrx [107]
3 years ago
6

A study was conducted of the trend in the design of social robots. In a random sample of 113 social​ robots, 67 were built with

legs only​, 21 were built with wheels only​, 9 were built with both legs and wheels​, and 16 were built with neither legs nor wheels. Use the rule of complements to find the probability that a randomly selected social robot is designed with either legs or wheels or both.
Mathematics
1 answer:
Leno4ka [110]3 years ago
4 0

Answer:

97/113

Step-by-step explanation:

67 robots have legs only, 21 have wheels only, and 9 have both legs and wheels.  The total number of robots with legs and/or wheels is 97.

The probability is 97/113.

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7 0
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A scooter travels 30 feet in 2 seconds at a constant speed.
Sever21 [200]

Answer:

The scooter travels 15 feet in 1 second

The scooter travels 45 feet in 3 seconds

The scooter travels 60 feet in 4 seconds

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Step-by-step explanation:

First, let's find the number of feet the scooter travels in 1 second

(30 : 2) ÷ 2 = 15 : 1

Now that we have the unit rate, we can easily find the answers to the other questions.

(15 : 1) x 3 = 45 : 3

(15 : 1) x 4 = 60 : 4

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8 0
3 years ago
Which of the following is not part of the converse of the triangle proportionality theorem?
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3 0
3 years ago
Read 2 more answers
There are 874 pieces of candy in the piñata. There are 23 children at the party, and they all agreed to split the candy equally.
blsea [12.9K]

Answer:

38 candies.

Step-by-step explanation:

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Since we know that they are all sharing it equally, each child would get;

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Each child = 38 candies.

6 0
3 years ago
I think of a number, add 3 to it and multiply the result by 7.
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Answer:

7(x + 3)

<em>Step-by-step explanation</em>

<em>thinked number = x</em>

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x + 3

<em>multiply</em><em> </em><em>the</em><em> </em><em>result</em><em> </em><em>by</em><em> </em><em>7</em>

<em>7(  x+ 3)</em>

<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em>

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<em>good</em><em> </em><em>luck</em><em>!</em><em> </em><em>have</em><em> </em><em>a</em><em> </em><em>nice</em><em> </em><em>day</em><em>!</em>

6 0
4 years ago
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