SOLUTION: David has 50 employees. Blue collar workers make $600 per week and white collar workers make $1000 per week. David's payroll is $42,000. David has how many white collar workers?

Question 392227: David has 50 employees. Blue collar workers make $600 per week and white collar workers make $1000 per week. David's payroll is $42,000. David has how many white collar workers?
Answer by NancyLam(35) (Show Source): You can put this solution on YOUR website!
I don't do add or subtrac both side it take to long and make confusing too, I do only one side it quick and easy, you can do both side if you want
Let x= blue , y= White
$600x+$1000y=$42000
x+y=50
y= 50-x
600x+1000(50-x)=42000 (subtitution y=50-x)
600x+50000-1000x =42000 (mutipy)
-400x =42000-50000 (simplify)
x =-8000/-400
x = 20
x+y+=50
20+y=50
y = 50-20
y = 30
Check: y=30, x=20
$600(20)+1000(30)=$12000+$30000=$42000
RELATED QUESTIONS
If there are 12 white collar employees and 23 blue collar employees. What percentage of... (answered by macston)

Hi, How would I work this out - need to understand the steps in simple terms not just... (answered by algebrahouse.com)

The factory workers make 75 toys per day. If they work 5 days per week, how many toys... (answered by josgarithmetic,MathTherapy)

In an article in the Journal of Management, Joseph Martocchio studied and estimated the... (answered by stanbon)

May you please help me with these five problems. 1. An official with Bartram paint... (answered by stanbon)

David earns $1.50 per hour more than Peter. Together they both work 40 hours in a week.... (answered by josgarithmetic)

A worker in a sunglass factory can make 50 frames or 100 lenses per day. There are 90... (answered by Fombitz)

Directions: Solve each problem. A furniture maker has a shop that can employ 12... (answered by ankor@dixie-net.com)

A furniture maker has a shop that can employ 12 workers for 40 hours per week at its... (answered by ankor@dixie-net.com)