Consider the system of equations below. Explain how you could use multiplication to help eliminate one of the variables, then find the solution to the system.
x - 5y = 13
4x– 3y = 1

the answer would be c:   ax + b = ax + c

step-by-step explanation:

thus, the first answer choice, y = sec x, is the correct one

this is a direct variation proportion. y = kx

y is the total amount due, k is the constant of variation, and x is the number of texts sent.

plug in the 3.20 and the 16 to solve for the "k". this is the constant of proportionality. it is the value that will not change.

3.20 = k(16). solving you get $.20 per text.

the equation would then be y = .20x