A man gets $312 for working 48 hours a week. how much does he get when he works 36 hours a week?

$234

Step-by-step explanation:

Create a proportion where x is the amount he gets working 36 hours

=

Cross multiply and solve for x

48x = 11232

x = 234

So, when he works 36 hours a week, he will get paid $234

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,