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Alex777 [14]
2 years ago
10

Smart phone users between 18 and 24 years of age send on average 64 text messages per day with a standard deviation of 10 messag

es about what percentage of smartphone users in this age groups in less than 51 text messages per day
Mathematics
1 answer:
inna [77]2 years ago
4 0

Answer:

9.68%

Step-by-step explanation:

You might be interested in
Please help! Due tonight!
Kay [80]

Answer:

B. 6,8,10

Step-by-step explanation:

to find a right triangle the equation: a^2 + b^2 = c^2, so just plug each number in to see.

6^2 + 8^2 = !0^2

36 + 64 = 100

100 = 100

Personally i knew almost immediately because 3,4,5 are the most common right triangles example and 6,8,10 are just a x2 of them so yea.

3 0
3 years ago
Three pies were made for a party. Each pie was cut into eight pieces. 3⁄8 of the apple pie was left. 1⁄2 of the cherry pie was l
miskamm [114]

Answer:

There are 13 pieces of pie left.

Step-by-step explanation:

So there are 3 pieces of apple pie left, there are 4 pieces of cherry pie left, and there are 6 pieces of pumpkin pie left. 3 + 4 + 6 = 13.

3/8 = 3 pieces because each fraction in this one equals one piece. So the numerator is how many left.

1/2= 4 because you just divide 8 by 2.

3/4 = 2 because you can multiply the fraction by 2 and get 6/8. Then the numerator is how many that's left.

I hope I helped.

3 0
3 years ago
In a game of chance, the probability of winning a $50 is 40% and the probability of losing a $50 prize is 60%. what is the expec
melamori03 [73]
To calculate expected value,
We can add up the probability of all possible events.
The 2 possible events are either winning $50 or losing the prize, which is $ - 50
Expected value =
50 x 40 % + (-50) x 60%
= $-10
So the answer is $-10
4 0
3 years ago
How do you do this I need help
Liula [17]
The answer is 2 and 5/6                                                                                            
5 0
3 years ago
Read 2 more answers
How do you simplify 2(m+5)+8(6m+1)
galina1969 [7]
You must use distributive property to get 2m+10+48m+8 and then add all like terms. You get 50m+18 as your final answer.
5 0
3 years ago
Read 2 more answers
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