Answer:
[2] x = -5y - 4
// Plug this in for variable x in equation [1]
[1] 2•(-5y-4) - 5y = 22
[1] - 15y = 30
// Solve equation [1] for the variable y
[1] 15y = - 30
[1] y = - 2
// By now we know this much :
x = -5y-4
y = -2
// Use the y value to solve for x
x = -5(-2)-4 = 6
Solution :
{x,y} = {6,-2}
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Terms and Topics
Linear Equations with Two Unknowns
Solving Linear Equations by Substitution
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Algebra - Linear Systems with Two Variables
Step-by-step explanation:
Answer: 9
Step-by-step explanation:
Use Pythagorean's Theorem for a right triangle.
Answer:
Rational
Step-by-step explanation:
Because irrational numbers cannot be expressed as a fraction
6.4/8 = y/6 = x/7
0.8/1 = 4.8/6 = 5.6/7
6.4/8 = 4.8/6 = 5.6/7
x = 5.6 ; y = 4.8
I think that’s how you do it but not 100% sure
Hello, I’m not super sure about the last part but to get 1 divide 20 by 20 and then from 1 multiply by 12 to get 12. I hope this helps :)
