How do I solve the equations for x+y=8, x+z=13, z-w=6, and w+y=8?
x + y = 8 ——(1)x + z = 13 ——-(2)z - w = 6 ——-(3)w + y = 8 ——(4)Equation (1) - Equation (2)z - y = 5 ——-(5)Equation (3) - Equation (5)y - w = 1w - y = -1 ———(6)Equation (6) + Equation (4)2w = 7w = 7/2If w = 7/2 then from equation (4)y = 8 - 7/2y = 9/2If y = 9/2 then from Equation (1)x = 8 - 9/2x = 7/2If x = 7/2 then from equation (2)z = 13 - 7/2z = 19/2So we gotx = w = 7/2y = 9/2z = 19/2
If 2=6, 3=12, 4=20, 5=30 and 6=42, what does 9 equal to, 56, 81, 72 or 90?
90
What are the best inspirational books that you ever read? And how were they inspiring?
“Leaders are always readers” maybe said in context with these books as these books truly have the potential to inspire greatness in people . And I strongly recommend everyone to read them.These are truly great works ,many of them are already suggested by my fellow Quorans so I will try to include the ones which may not have been included just yet:Think and Grow Rich by Napoleon HillBuy Think & Grow Rich! Book Online at Low Prices in IndiaThis book is the result of 25 years of hard work by Napoleon Hill and even today is considered as the most inspirational book written which actually has the power to make anyone successful so I strongly recommend it and cant explain it in words what impact this book has had on my life and countless othersA famous quote of Dr. Napoleon Hill : “Whatever the mind can conceive and believe it can achieve”.2. Who Moved My Cheese? by Dr. Spencer JohnsonBuy Who Moved My Cheese?: An A-Mazing Way to Deal with Change in Your Work and in Your Life Book Online at Low Prices in IndiaAdjusting with change in life is a depressing activity but this book has the potential to inspire you to not only adjust quickly but to become change loving yourself and this is a skill which is getting rarer day by day in people. The author`s simplistic style of writing and very short length of this book truly inspires and does justice to the “Bestseller tag” .There are truly many more great inspirational books out there and many of them have already been mentioned by other Quoran friends .Hope I helped
How many solar panels do I need to charge a 100Ah battery in 5 hours?
A 12 volt 100 AH battery needs 1200 watts of energy to be charged a 100%. However, its unlikely the battery is at 0% to start with. But for this reply I will assume we need to charge from 0% to 100%.Now a 280 watt panels used for solar rooftop systems will produce close to 280 watts in an hour(in bright sunlight). There's a loss of power because you are likely to have a charge controller between the Solar Panel and your battery. An average power loss is 10%. So you would get about 250 watts of power an hour.So you need 1200 / 250 = 4.8 hours of bright sunlight.A single solar panel of 280 watts will do the work for you. There are other solar panels with various power ratings you can install to charge your batteries such as 100 watts, 150 watts, 235 watts, 250 watts and many more. You just need to calculate the number of solar panels by dividing 1200 watts with power rating of the panels.
3 numbers that multiply to 2400?
2 x 30 x 40 3 x 40 x 20 6 x 20 x 20 6 x 40 x 10 12 x 20 x 10 24 x 10 x 10 15 x 20 x 8 15 x 5 x 32 15 x 10 x 16
Only one operation is required in this question. So, its up to you whether you first multiply 4 with 2 (right side) or 2 with 2 (left side).2 * 2 * 2 * 4= 32The answer is 32
Lots, especially people’s name, like Jane, Grace, all of them, they are translated by how it sounds.card, mama, papa…- almost the same