math
posted by matt .
Angelo is paid double time for each hour he works over 40 hours in a week. Last week he worked 42 hours and earned $660. What is his normal hourly rate?

So essentially he worked 44 hrs. hourly rate= 660/44
pay= 40*h+ (4240)*2h is another way.
660=h(40+8480)
660=h*44 
Putting it into an equation of what's known and what isn't.
We know his normal hours but not the pay. Let x be the missing number.
x=hourly pay
40x
we know he worked two extra hours at two times the rate.
2 times 2x
we know his wages with 2 times 2x
so put this together
40x + 4x=44x
divide 660 by 44 to solve for x
and you get 15.
Does that make sense?