At the beginning of the year, Katherine had $80 in savings and saved an additional $8 each week thereafter. Josiah started the year with $25 and saved $13 every week. Let K K represent the amount of money Katherine has saved t t weeks after the beginning of the year and let J J represent the amount of money Josiah has saved t t weeks after the beginning of the year. Write an equation for each situation, in terms of t , t, and determine the interval of time when Katherine has more in savings than Josiah.

the solution is 12x-6y

an altitude of 15,000 feet

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what is your question that you ask

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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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