If any two ordered pair (2x-3,6)=(x+1,2y/3) find the value of x and y

2x-3= x+1

or, 2x- x = 1+3

or, x = 4

so, x = 4

NOW,

6= 2y/3

or, 6×3 =2y

or, 18/2 = y

so, y = 9

X = 4 and Y = 9

ANS

i think the answer is seven, for if i'm being useless °ω°

step-by-step explanation:

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.

click to let others know, how is it

0.0

0 votes

1

report

read more on -

step-by-step explanation: