Answer:
Step-by-step explanation:
x= money earned per hour working as a cashier.
y=money earned per hour working delivering newspapers.
We propose the following system of equations:
5x + 4y =77
6x + 3y=78
We solve the system by reduction method:
-6*(5x+4y=77) ⇒ -30x-24y=-462
5*(6x+3y=78)⇒ 30x+15y=390
---------------------------
-9y=-72 ⇒ y=-72 /-9=8
Now, we get the value of "x" replacing the value of "y" by "8" in any part of the equation above.
5x + 4(8)=77
5x+32=77
5x=77-32
5x=45
x=45/5=9
therefore;
money earned per hour working as a cashier= $9/ hour
money earned per hour working delivering newspapers=$8/hour
Answer:
9
Step-by-step explanation:
0.15
+3.00=3.15
3.15÷35=0.09
0.09×100=9
HELLO,
Your answer is 130-50=80
You would have to make 80 dollars,
So 8 dollars per hour (of course that is below minimum wage that means you need a raise).
Therefore, you need to mow lawns for 10 hours
Thanks for posting your question here on brainly.
Hope this helps you.
Let me know if its correct.
Answer:
1. C
2. 3 movies
Step-by-step explanation:
1. the step function is discontinuous at C. multiples of 8 greater than 0,
you can see that at 8, 16, 24 ,32, 40, the graph is discontinuous.
2. when x = 25, y = 3.
