Get one x+y=3 to y=x+3 and plug it into x-y=1 and you get x-(x+3)=1. Destitute the x and solve. Once you get what x equals plug it to to either equation for the value of x and solve for y
Answer: 72 gallons
Step-by-step explanation: I added 5 and 3 then multiplied by 9.
94.2 in would be your answer
Hey! I'll provide you the answers!
First you want to simplify the equation using cross-multiplication.

Finally, you would want to divide both sides by 15.
n = 161
Answer:
B.120 feet
Step-by-step explanation:
12 × 20 × 10 = 120