Sierra runs a factory that makes DVD players each T 50 makes 9 ounces of plastic and 4 ounces of metal HFS 20 requires 3 ounces of plastic and 6 ounces of metal the factory has 276 ounces of plastic 384 ounces of metal available with a maximum of 18 T 50 that can be built each week if HT 50 generates $11 and profit and each F S 20 generates seven dollars how many of each of the DVD players should sierra have the factory make each week to make the most profit

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step-by-step explanation:

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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