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DanHAlgebra 1
Solve the system of equations using the Addition method. 2a + 3b = 1 3a + 5b = 2 Margie: Roger's answer below is correct. If you don't understand it, please try and tell us what you don't understand. He makes it sound so strange
asked by Margie on October 14, 2006 
quantitative chemistry
Determine [Zn2 ], [CN–], and [HCN] in a saturated solution of Zn(CN)2 with a fixed pH of 1.78. The Ksp for Zn(CN)2 is 3.0 × 10–16. The Ka for HCN is 6.2 × 10–10. I know the following is what needs to be done, but im unsure
asked by Jackie on March 22, 2013 
Analytical Chem
Determine [Zn2 ], [CN–], and [HCN] in a saturated solution of Zn(CN)2 with a fixed pH of 2.390. The Ksp for Zn(CN)2 is 3.0 × 10–16. The Ka for HCN is 6.2 × 10–10. I know the following is what needs to be done, but im
asked by Anonymous on September 16, 2014 
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how do i solve two step equations? Do you mean two equations in two unknowns? The method of substitution is one way. There is a good tutorial here: http://www.themathpage.com/alg/simultaneousequations.htm
asked by megan on January 18, 2007 
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You are given vectors A = 5.0i  6.5j and B = 2.5i + 7.0j. A third vector C lies in the xyplane. Vector C is perpendicular to vector A and the scalar product of C with B is 15.0. Find the x and y components to vector C. Here's
asked by Vectors on August 30, 2014 
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I'm stuck on this problem. Can you help? 4x9y=1 x + 2y =4 WHat is x and y? Two equations in two unknowns. Here is a quick way to solve them 4x  9y = 1 4x  8y = 16 (I got that my multiplying both side so the secind equation
asked by kyle on December 5, 2006 
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A light plank rests on two scales that read Fg1 = 410 N and Fg2 = 310 N. The scales are separated by a distance of 2.00 m. How far from the woman's feet is her center of gravity (the woman is laying on a plank with scales on both
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Write a system of equations, three equations/three unknowns, that has (1, 2, 3) as the solution.
asked by Mark on November 5, 2017 
algebra
how would i find an equation of a line that goes through points(1,6) and (3,10)?? thanks A straight line is y=mx+b Substitute the points to make two equations. 6=m(1)+b 10=m(3)+b Two equations; two unknowns, m and b. Solve for m
asked by jasmine on December 22, 2006 
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Can you please give me one of them so I cansolve for the other one?PLease! The general formula for a straight line is y = mx + b. Just plug the points into the equation to arrive at two equations. 6=2m+b 10=4m+b you have two
asked by margie on November 1, 2006