Answer:
Step-by-step explanation:
To write any polynomial in standard form, you look at the degree of each term. You then write each term in order of degree, from highest to lowest, left to write.
To add the polynomials you need to:
Remove parentheses
Group like terms
Add similar elements
Answer:
15 years , 12 years , 8 years.
Step-by-step explanation:
Given:
John is 3 years older than Jim.
Jim is 4 years less than twice David’s age.
Ages of three boys add up to 35.
Question asked:
How old are the three boys?
Solution:
Let age of David =
Let age of Jim =
Then age of John will be =
As Jim is 4 years less than twice David’s age
Equation will be ,
Multiplying both side by 2
= (let equation 1 )
As ages of three boys add up to 35.
Equation will be,
=
Subtracting both side by 3
=
= (let equation 2 )
subtracting equation 1 and 2,we get
=
=
=
=
dividing both side by 5
(David ages)
Then ( age of Jim)
=
=
Then age of John will be,
=
Thus, age of John = 15 years
Age of Jim = 12 years
Age of David = 8 years