Maria mixes 14 cup of white sugar and 23 cup brown sugar to make a topping for some muffins. She uses 112 cup of the mixture to top each muffin. Part A: How many muffins can Maria top with the amount of the mixture that she has?

answer: sensy

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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step-by-step explanation: