Sam and joe are painters. sam makes $2 and hour less than joe. On a job that took them both 40 hour to comeplete they made $440. How much does Sam make and hour?
a 3.50
b 4.50
c 6.50
d 45
e 65
2006-06-07 10:16:11 · 11 answers · asked by Anonymous in Education & Reference ➔ Homework Help
Together they made $11 per hour ($440 / 40 hours). So, Sams wage, times 2, plus $2 = $11. Sams wage times 2 = $9, so Sam makes $4.50, so Joe makes $6.50.
2006-06-07 10:22:44 · answer #1 · answered by kimmyisahotbabe 5 · 0⤊ 0⤋
Set up what is called a system of equations. Let's use s for Sam's pay-per-hour and j for Joe's pay-per-hour:
s = j - 2
40*(s + j) = 440
Using the first equtaion:
j = s + 2
Substituting that into the second:
40*(2s + 2) = 440
2s + 2 = 440/40 = 11
2s = 11 - 2 = 9
s = 9/2 = $4.50 per hour.
2006-06-07 17:20:20 · answer #2 · answered by Baseball Fanatic 5 · 0⤊ 0⤋
Sam makes $10/hr. Joe makes $12/hr.
(x+x-2)= $440/40
2x-2 = 22
2x = 24
x = 12
x-2 = 10
2006-06-07 17:23:52 · answer #3 · answered by indiantrumpet 4 · 0⤊ 0⤋
Sam = x
Joe = x+2
40x + 40(x+2) = 440
40x + 40x + 80 = 440
80x = 360
x = 4.5
2006-06-07 17:22:41 · answer #4 · answered by yourandom 2 · 0⤊ 0⤋
a is the answer 440/40 is 11. 11/2 is 5.5 3.5 is 2 less than that get it? :)
2006-06-07 17:20:17 · answer #5 · answered by nay 5 · 0⤊ 0⤋
x+x+80=440
2x+80=440
2x=360
x=180
sam makes 180 for the week
Joe makes 260 for the week divide that by 40 and you get 6.5 an hour
2006-06-07 20:45:16 · answer #6 · answered by Starrynight 2 · 0⤊ 0⤋
J=S+2
40 (S+S+2) = 440
80S + 80 =440
80 S = 360
S=45
"d" is the correct answer
2006-06-07 17:23:18 · answer #7 · answered by Zelda Hunter 7 · 0⤊ 0⤋
letter a, 440*40=11 11*2=5.5 then 5.5-2=3.5 get it?
2006-06-07 17:23:12 · answer #8 · answered by sammydoobean 2 · 0⤊ 0⤋
2x +2 * 40 = 440
2x+2 = 11
x =9/2= 4.5
so your answer is 4.5
2006-06-07 17:22:40 · answer #9 · answered by shogunly 5 · 0⤊ 0⤋
Figure it out!
2006-06-07 17:19:39 · answer #10 · answered by NK 2 · 0⤊ 0⤋