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
Answer:
Angle 1 and Angle 5. Option 3 or C.
Step-by-step explanation:
Corresponding angles are formed when a transversal passes through two lines.
So..
Angle 1 and 5 are corresponding.
More help:
Corresponding angle meaning: the angles which occupy the same relative position at each intersection where a straight line crosses two others. If the two lines are parallel, the corresponding angles are equal.
this will help you find them in the future!
Hope this helps!
- Melanie
Answer:
60t + 55t = 150
Step-by-step explanation:
I took the test. I know it's correct!!!
-19.8 > 3.6y
-19.8/3.6 > 3.6y/3.6
-5.5 > y
