Step-by-step explanation:
Add everything and then equate it to 360 and when you have found x, substitute it in A and B
Answer:
Alyssa work at job A 
Step-by-step explanation:
Let
x------> the number of hours at work A
y------> the number of hours at work B
we know that
-----> equation A
-----> equation B
substitute equation A in equation B






Answer:
He could work 10 hours as a lifeguard, and 5 hours as a tutor
Step-by-step explanation:
If he makes $16 an hour as a lifeguard
and $18 an hour as a tutor,
He could work 10 times $16, to make $160 for 10 hours.
Now we subtract this from $250, this makes $90.
We know need to find out how many times 18 goes into 90, 5 times.
So we know that he could work 10 hours as a lifeguard and 5 hours as a tutor.
I hope this is right.
I hope this helps too, have a nice day!
I'm so confused right now!