If CJ=2x+3, CT=53, and JT=9x+6, find JT

JT =231

Step-by-step explanation:

TO SOLVE FOR JT YOU WILL FIRST F ALL KNOW THE VALUE OF X AND THEN SUBSTITUTE INTO JP EXPRESSION TO EVALUATE

given that

CJ = 2X +3

CT = 53

JT = 9X + 6

JT = ?

From

CJ = 2X +3

53 = 2x + 3

combine the like terms

53-3 = 2x

50 = 2x

divide both sides by the coefficient of x which is 2

50/2 = 2x/2

25 = x

to find JT

JT = 9X + 6

JT= 9(25) + 6

JT = 225 + 6

JT =231

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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