12 - 1/8p = 3/8p this is on ""solving equations with variables on both sides""

p=-24

Step-by-step explanation:

-12-1/2p=3/8p

     +1/2 p +1/2 p  add 1/2 to both sides

       -12=4/8p

       -12=1/2p

        *2   *2   multiply by 2 to both sides

        -24=p

        p=-24

answer: 94

step-by-step explanation: 79+91+92+94+94 = 450 divided by 5 (since there are 5 number that are being added) = 90

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: