Answer:
Step-by-step explanation:
8/10 = x-1 / x+2
4/5 = x-1 / x+2
4(x+2) = 5(x-1)
4x + 8 = 5x -5
13 = x
there you go :)
Supplementary, complementary, neither
2x + 3y = -1.....(5)
5x + 8y = 0.....(-2)
-----------------------
10x + 15y = -5
-10x - 16y = 0
-----------------------add
-y = -5
y = 5 <=====this is where Janet messed up
2x + 3y = -1
2x + 3(5) = -1
2x + 15 = -1
2x = -1-15
2x = -16
x = -16/2
x = - 8
solution is : (-8,5)
Answer:
3,406.5 litres/hr
Step-by-step explanation:
The liquid is being poured at a rate of 15 gallons per minute.
1 minute = 1/60 hour
Thus, the rate can be written as:
15 gallons pet 1/60 hour
We are told that one gallon is approximately 3.785 liters.
Thus;
15 gallons = 15 × 3.785 litres = 56.775 litres.
Thus, the rate is;
56.775 litres per 1/60 hour
We want to find in litres/hr.
By proportion, we have it as;
(56.775 ÷ 1/60)/1 = 56.775 × 60 = 3,406.5 litres/hr
Answer:
Well all you need is 2 points to calculate slope
You can follow the equation,
{y2-y1 / x2-x1} = slope
-2-1=-3
4-0=4
-3/4
-3/4 is the slope
