Kayden had 36 trading cards and bought 2 more trading cards per week for x weeks. Paul had 8 trading cards and bought twice as many cards per week as Kayden.
How many weeks will it take for Kayden and Paul to have an equal number of trading
cards?
Record your answer and fill in the bubbles on your answer document. Be sure to use the
correct place value.

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step-by-step explanation:

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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: