Orange juice a bagel and a cup of coffee from kelly’s koffee kart cost a total of 2.90$. kelly posts a notice that effective the following week the price of orange juice will increase 50% and the price of bagels will increase 20%. after the increase the same purchase will cost a total of 3.60$, and the orange juice will cost twice as much as coffee. find the price of each item before the increase.

answer: options?

step-by-step explanation:

14.3

step-by-step explanation:

add all the numbers together.

9 + 12 + 15 + 16 + 17 + 17 = 86

now, divide 86 by how many numbers we have: 6.

86 / 6 = 14.3

the answer is su.k.my? ? co.kc

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: