Question 1: 4.375/10 of an hour (or 26.25 minutes)
-5x + y = -5.....multiply by -2
-4x + 2y = 2
---------------
10x - 2y = 10 (result of multiplying by -2)
-4x + 2y = 2
-----------------add
6x = 12
x = 12/6
x = 2
-5x + y = -5
-5(2) + y = -5
-10 + y = -5
y = -5 + 10
y = 5
solution is (2,5)
5 times when all 5 times are up its 7:30 which if 3/4 of a hour which is 45 and is that time4learning?
Answer:
$44 hope it helps
Step-by-step explanation: