Answer:
Step-by-step explanation:
Let the boy's present age be x.
Let his dad's present name be y.
Last year, his dad was 8 times as old as him. Subtract one year from each their ages and multiply the son's age by 8:
(y - 1) = 8(x - 1) ______ (1)
Now, his dad's age is the square of his age:
y = _________(2)
From (1):
y = 8x - 8 + 1
y = 8x -7
Put this in (2):
This problem has been represented in the form of a quadratic equation.
Left Side
if x = a number
five times a number means 5 · a number = 5 · x
add a negative sign; -5·x
simplify; you don't need the multiplication symbol; -5x
minus 2·x = -2x
plus 3 = +3
-5n-2x+3
Sign
less than or equal to = ≤
Right Side
triple of x = 3·x = 3x
4 minus triple of x = 4-3x
4-3x
The final inequality is -5x-2x+3 ≤ 4-3x
♡ Hope this helps! ♡
❀ 0ranges ❀
Answer:
$238
Step-by-step explanation:
The slope of the line is 4/3. It is already written as an improper fraction. It can’t be written as a proper fraction, as it will always be over the limit, making it improper. And it can’t be a integer, since it’s not a whole number. Leave it as 4/3. :)
Hope this helps!!
(I’m really sorry if I’m wrong.)