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diamong [38]
3 years ago
6

There are 12 kids in this class including you. If every person shakes hands with every other person, how many handshakes will th

ere be all together?
Mathematics
2 answers:
Alborosie3 years ago
6 0
So there are 13 people.
13 times 13 = 169

Hope this helps :D
Monica [59]3 years ago
3 0

Answer: 132 handshakes in total

Step-by-step explanation: 11x12 because one of them will be the one shaking hands with everyone else so he would have gotten 11 hands shaked so everyone would have gotten their hands shaked 11 times

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What is 73.24 rounded to the nearest tenth
Jobisdone [24]

The best way to remember which place is rounded to the nearest 10th, 100th, 1000th, etc., is by counting the number of 0's.

This question wants you to round to the nearest 10th.

How many 0's does 10 have? 1.

So we round one space after the decimal.

This gets us 73.2

6 0
3 years ago
Use a number line to arrange these numbers in order from least to greatest:<br> 2, 19, -11, 6, -5
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3 years ago
Answer this question please; number 5... show all work thank you
My name is Ann [436]

Answer:

rate of the plane in still air is 33 miles per hour and the rate of the wind is 11 miles per hour

Step-by-step explanation:

We will make a table of the trip there and back using the formula distance = rate x time

                 d              =            r       x       t

there

back

The distance there and back is 264 miles, so we can split that in half and put each half under d:

               d            =         r        x        t

there    132

back     132

It tells us that the trip there is with the wind and the trip back is against the wind:

           

              d           =        r         x        t

there     132        =    (r + w)

back      132       =     (r - w)

Finally, the trip there took 3 hours and the trip back took 6:

           

             d         =        r        *        t

there    132     =    (r + w)     *       3

back     132     =    (r - w)      *       6

There's the table.  Using the distance formula we have 2 equations that result from that info:

132 = 3(r + w)        and        132 = 6(r - w)

We are looking to solve for both r and w.  We have 2 equations with 2 unknowns, so we will solve the first equation for r, sub that value for r into the second equation to solve for w:

132 = 3r + 3w and

132 - 3w = 3r so

44 - w = r.  Subbing that into the second equation:

132 = 6(44 - w) - 6w and

132 = 264 - 6w - 6w and

-132 = -12w so

w = 11

Subbing w in to solve for r:

132 = 3r + 3(11) and

132 = 3r + 33 so

99 = 3r and

r = 33

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