Varibles, 2x-1=10 I got 9/2 but i''m not sure if that is really right

2x-1=10 I got 9/2 but i''m not sure if that is really right

Solving Absolute Value Equations, When is a problem an empty set and when d...

When is a problem an empty set and when do you have to solve for two problems when doing an equation?

Math question, The Timbuktu post office has only 3 cents and 7 cents stamps...

The Timbuktu post office has only 3 cents and 7 cents stamps having run out of all other denominations. What are the six amounts of postage that cannot be created? How do you know

Finite Mathematics, Suppose that a company has a fixed cost of $150 per day...

Suppose that a company has a fixed cost of $150 per day and a variable cost of x^2+x. Further suppose that the revenue function is R(x) = xp and the price per unit is given by p =

New math, What is the effectiveness of new math?

What is the effectiveness of new math?

Factorising Algebra, 2x + 6?

2x + 6?

Algebra, 2a*2b

2a*2b

Quadratic functions, 27x^2+3x+5

27x^2+3x+5

Identifying the property, if I have the equation 3(x+4y)+5(2x-y)an then I c...

if I have the equation 3(x+4y)+5(2x-y)an then I change it into (3x+12y)+(10x-5y) what property is it

Quadratic equations,