Answer:
y = 1.5x + 1.5
Step-by-step explanation:
First, plot 2x + 3y = 15 on a graph. Then plot (1,3) on a graph. After that, draw a line that passes through (1,3) and forms 90 degrees angles with 2x + 3y = 15. Then find the equation of that line by finding the y-intercept (0, 1.5). Then head up to the intersection point (1.6153846153846, 3.9230769230769). Subtract 1.5 from y. (2.4230769230769) Then divide by 1.5 (1.6153846153846). Reverse the operations you just did (in reverse order) to get the equation y = 1.5x + 1.5.
(I don't know how to explain this too well. Here's a graph to make more sense of it.)
Answer:
Step-by-step explanation:
20 gallons of water for 5 days...
20/5 = 4 gallons per day
1 gallon = 3.8 liters.....so 4 gallons = (3.8 * 4) = 15.2 liters per day <==
Answer:
C. 4812
Step-by-step explanation:
Subtract 12694 with 7823
There are 3 tens in one because 10 plus 10 plus 10 is 30.