Answer:
I: 4x-5y=-10
II: 2x-7y=4
c) multiply the second equation by -2 and add the result to the first equation
II*-2=-4x+14y=-8
add I+II*-2: 4x-5y+(-4x+14y)=-10-8
=9y=-18
Step-by-step explanation:
Answer:
equation: 3.5x=31.5
number of hours: 9
Step-by-step explanation:
31.5/3.5=9
Therefore,
x=9, x=number of hours, number of hours=9
Hello there
the answer is most likely
D. 6.30q + 14.40 = 4.50(q + 4) Or C
hope this helps
(3,15)(6,30)
slope = (30 - 15) / (6 - 3) = 15/3 = 5...so 5 gallons wasted per day
