The cost of a horse is one - third of the cost of a cow. Which one of the following statement is true? * 1 point A horse costs three times as much as a cow. A horse costs the same as the three cows. A cow costs four times as much as a horse. A cow costs the same as three horses.

where are the choices?

r and t.

both are 64 degrees.

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