Answer:
x^2-14x+49=(x-7)^2
Step-by-step explanation:
This is completing the square
X^2 -14x+__=(x-__)^2
x^2-14x+49=(x-7)^2
-14/2=7
7^2=49
In first 40 hours he earns = 7.30 x 40 = $292
Each hour after his rate = 7.20 x 1.5 = $10.80 per hour
In extra four hours he earns = 10.80 x 4 = $43.20
Total earnings = $292 + $43.20 = $335.20
Therefore you don't agree
The total amount of money that Jeff has is $20
total fraction of his expenses on lunch and movies is:
(2/5+1/8)
=21/40
the remaining fraction is:
1-21/40
=19/40
thus the amount of cash that Jeff was left with will be:
19/40×20
=$ 9.5
1.950 because the first number after the decimal is bigger
