Asnack cart sells lemonade for $2 and hot dogs for $5. the vendor sold 86 items today for a total of $330. which equation is true? a.(86 – h)(h) = 86 b.(86 – h) + h = 86 c.(86 – h) + h = 2 + 5 d.[2(86 – h)](5h) = 330

The equation in B is true.

We know this in two ways. Firstly, we know since it sold 86 items, that we have the amount of hot dogs (h) and then the amount of lemonade would be (86 - h), or how ever many is left over after the hot dogs.

The second way we can know is by looking at the equation algebraically.

(86 - h) + h = 86

86 - h + h = 86

86 = 86 (TRUE)

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system