Kaitlin, Austin, and Rafael have a total of $129 in their wallets. Rafael has 3 times what Austin has. Kaitlin has $9 more than Austin. How much does each have?
Amount in Kaitlin's wallet:
Amount in Austin's wallet:
Amount in Rafael's wallet:

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table 3 represents a direct variation function. : )

answer: do we write it

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hello,

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

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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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