Dwayne earned $530 working 2 jobs. One job pays $14 per hour and the other pays $10 per hour. He worked a total of 45 hours how many hours did he work at each job? Set up a system and solve

Respuesta :

Answer:

Dwayne worked 20 hours for first job and 25 hours for second job.

Step-by-step explanation:

Let the number of hours worked by Dwayne in first job = x

Let the number of hours worked by Dwayne in second job = y

Then, [tex]\[x + y = 45\][/tex] ----------------- (1)

First job pays $14 per hour

Second job pays $10 per hour

=> [tex]\[14x + 10y = 530\][/tex] ------------- (2)

Solving (1) and (2):

[tex]\[y = 45 - x\][/tex]

Substituting in (2):

[tex]\[14x + 10 (45-x) = 530\][/tex]

=> [tex]\[14x + 450- 10x = 530\][/tex]

=> [tex]\[4x  = 530 - 450\][/tex]

=> [tex]\[4x  = 80\][/tex]

=> [tex]\[x  = 20\][/tex]

Substituting in (1):

[tex]\[y = 45 - x\][/tex]

=> [tex]\[y = 45 - 20\][/tex]

=> [tex]\[y = 25 \][/tex]