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Vlada [557]
3 years ago
15

If you flipped a fair coin 18 times, about how many times would you expect heads to appear? HELP ME PLEASE!!!!!!!

Mathematics
1 answer:
Andrei [34K]3 years ago
4 0

Answer:

9 or 3.8x10^-6

Step-by-step explanation:

By flipping a coin you'd look at how many times a head could appear (1/2) and multiply that by the 18 times.

Another explanation:

I'm not sure on this but would you raise 1/2 to the 18th power?

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A family paid $142.80 which included $6.80 in taxes for 4 play tickets each ticket costs the same amount how much did each perso
borishaifa [10]
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8 0
3 years ago
One day a store sold 21 sweatshirts. white ones cost​ $9.95 and yellow ones cost $ 11.50. in​ all, ​$235.30 worth of sweatshirts
FromTheMoon [43]
For this problem you have yo set up two equations.

White shirts = w Yellow shirts = y

1st: w + y = 21
2nd: 9.95w + 11.50y = 235.30

Now we're going to do system of equations using substitution.

If w + y = 21, then y = 21 - w
If y = 21 - w, then you can substitute this in the second equation for y.

9.95w + 11.50(21 - w) = 235.30
9.95w + 241.5 - 11.50w = 235.30
-1.55w + 241.5 = 235.30
-1.55w = -6.2
w = 4, so 4 whites shirt were sold.

Now I'm finding out how many yellow shirts were sold using one of the two equations at the top.

w + y = 21
4 + y = 21
y = 17

So 17 yellow shirts were sold and 4 white shirts were sold.
5 0
3 years ago
Write the improper fraction as an improper 6 4/13
Contact [7]

Answer:

82/13

Step-by-step explanation:

3 0
2 years ago
How do you find the value of x and the length of the indicated segment
kaheart [24]
You have to multiply
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what is the equation, in point-slope form, of the line that is perpendicular and passes through the point (−4, 3)?
inn [45]
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