Answer:40
Step-by-step explanation:This is a variation question
From the statement. Let the mental age be M and the chronological age be C, then
IQ ∝M ∝1/C
⇒ IQ ∝ M/C
Introducing the proportionality constant
IQ = KM/ C
Given : M = 15, C = 30 , 1Q = 20
Substitute the given values into the equation
i.e 120 = K x 15/ 30
120 = k/2
therefore k = 240
substitute k = 240 into the equation, we have
IQ = 240M/C
To find C when IQ is 120 and M is 20, we will substitute into the generated formula
i.e 120 = 240 x 20 / c
120c = 480
C = 480/120
C = 40
Therefore , the chronological age of a person with mental age of 20 and IQ of 120 is 40
The point will go from (x,y) to (-x,-y)
Answer:
312 employees participated in the training
Step-by-step explanation:
Given;
employee to instructor ratio is 24 to 2
there are 26 instructors for the training
let the total number of instructors be I = 26
let the total number of employees be e = ?
employee to instructor ratio is 24 to 2, e : I = 24 : 2
e : I = 24 : 2 = e : 26
Therefore, the total number of employees who participated in the training is 312
Answer
$36
Step-by-step explanation:
You multiply 0.8 by 20 since 0.8 is also 80% and you get 16. Since you want 80% more than 20 you add together to get $36. Hope it helped!
