solve for x. 20=5/x | Wyzant Ask An Expert
2013年8月7日 · 20 = 5/x. multiply by x both sides to get: 20x = 5. divide both sides by 20: 20x/20 = 5/20 ---> x = 5/20 ...
If 5/x = 15/ (x + 20) what is x/5? | Wyzant Ask An Expert
2019年8月20日 · Since x/5 is the reciprocal of 5/x, we know that we can flip the fraction on the right hand side will be flipped. Thus, x/5 = (x + 20)/15. Now we cross multiply, 15x = 5(x + 20) Simplify: 15x = 5x + 100 . Subtract 5x from each side: 10x = 100. Divide 10: x = 10 . Now plug 10 back into the right hand side: (10 + 20)/15 . So, the answer is 2.
Find value of k to make limit exist and be finite
2016年8月2日 · With the limit having to be a finite value, the denominator (x - 5) must be canceled out from the numerator otherwise there would be division by zero as x->5, which would not be a finite limit For the cancellation to occur x =5 must b a solution of the numerator, i.e. x 2 +5k-20 = 0
what is 20x= 5/4 | Wyzant Ask An Expert
2024年1月10日 · Ask a question for free Get a free answer to a quick problem. Most questions answered within 4 hours.
how to solve x square+9x+20 divided by x+5 - Wyzant
2017年12月30日 · Ask a question for free Get a free answer to a quick problem. Most questions answered within 4 hours.
When you divide the polynomial 3x^2 + 7x - 20 by x - Wyzant
2016年1月28日 · When you divide the polynomial 3x^2 + 7x - 20 by x + 4 using long division, you get: A: 3x^2 - 5 ...
Use the zero product property to find the solutions to the
2017年12月11日 · Use the zero product property to find the solutions to the equation x2 – 9 = 16. x = –3 or x = 3 x = –6 or x = –3 x = –5 or x = 5 x = 7 or x = 1
5 percent of what number is 20? - Everydaycalculation.com
20 is 5% of 400. Steps to solve "20 is 5 percent of what number?" We have, 5% × x = 20; or, 5 / 100 × x = 20; Multiplying both sides by 100 and dividing both sides by 5, we have x = 20 × 100 / 5; x = 400. If you are using a calculator, simply enter 20×100÷5, which will give you the answer. MathStep (Works offline)
X + Y = 10, X + Z = 20, Y + Z = 24, what is X + Y + Z - Wyzant
2016年1月19日 · Factoring out the 2, we have 2(X + Y + Z) = 54, and dividing both sides by 2 reveals that X + Y + Z = 27. This won't always work when you're solving three equations in three unknowns, but it's a trick that shows up frequently enough on assignments, standardized tests, etc. that it's worth mentioning.
Find the values of x for which f (x) = g (x). (Enter your ... - Wyzant
2020年5月1日 · x+20 is a straight line with y-intercept = 20 and x-intercept = -20 The line crosses the parabola potentially two times, one to the right of the y-axis where x>0 and one to the left of the y-axis where x<0, There should be a positive and a negative solution for x