The weights for newborn babies is approximately normally distributed with a mean of 6.9 pounds and a standard deviation of 2 pounds. Consider a group of 1500 newborn babies:

1. How many would you expect to weigh between 4 and 9 pounds?

2. How many would you expect to weigh less than 8 pounds?

3. How many would you expect to weigh more than 5 pounds?

4. How many would you expect to weigh between 6.9 and 10 pounds?

i don't have the answer rn but go to math papa. it shows the steps and the answer. hope this : )

step-by-step explanation:

answer

false

explanation

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i dont have an answer

step-by-step explanation:

delaney would like to make a 5lb nut mixture that is 60% peanuts and 40% almonds.

she has several pounds of peanuts and several pounds of a mixture that is 20% peanuts and 80% almonds.

let 'p' represent the number of pounds of peanuts needed to make the new mixture, and  

let 'm' represent the number of pounds of the 80% almond-20% peanut mixture.

:

p + m = 5

therefore

m = (5-p)

write an equation based on the percent of peanuts

1p + .2m = .6(5)

replace m with (5-p)

p + .2(5-p) = .6(5)

p + 1 - .2p = 3

p - .2p = 3 - 1

.8p = 2

p = 2/.8

p = 2.5 lbs of peanuts required

then

5 - 2.5 = 2.5 lbs of the peanut/almond mixture required

:

a) what is the system that models this situation?

p + m = 5

1p + .2m = .6(5)