Answer:
5/6
Step-by-step explanation:
Plug in 2 for x. f(20=2-51 = -49
step 2 would be 10
step 4 would be 10x-x = 9x =7
x = 7/9
Answer:
downlaod photo math, take a pic of the question and boom. theres your answer
Let the present age of student be x
Present of teacher will be 4x
After 20 years,
Age of student = x + 20
Age of teacher = 4x + 20
According to the given condition after 20 years,
x + 20 = (4x + 20)/2
x + 20 = 2x + 10
2x - x = 20 - 10
x = 10
So student's present age is 10 years while teacher's is 4 x 10 i.e 40 years.
Hope This Helps You!
