Jeniffer has 44 more movies than rosa. together they have 94 movies. how many movies does jeniffer have? how many movies does rosa have?

let the number of movies Jennifer have be X.

let the number of movies Rosa have be Y.

X + Y = 94(1)

X = 44 + Y(2)

on putting the value of X in equation 1, we get:-

44 + 2Y = 94

2Y = 94 - 44

2Y = 50

Y = 25

now putting the value of Y in equation 2, we get:-

X = 44 + 25

X = 69.

Jennifer have 69 movies while Rosa have 25 movies.

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation:

a.)the line for function b is steeper