William is 3 times elder than monica. in 6 years william will be twice as old as monica. what are their current ages. use an equation to solve.

William's age is 18 years old and Monica's age is 6 years old

Step-by-step explanation:

Let

x > William's age

y > Monica's age

we know that

x=3y > equation A

(x+6)=2(y+6) > equation B

Substitute equation A in equation B and solve for y

(3y+6)=2(y+6)

3y+6=2y+12

3y-2y=12-6

y=6 years

Find the value of x

x=3(6)=18 years

therefore

William's age is 18 years old

Monica's age is 6 years old

the expected value of the random variable : 0, 1 and 2

step-by-step explanation:

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.