Para una función de teatro para niños, el boleto para adultos cuesta $70 y el boleto para niños $35. Anoche entraron en total 80 personas y se recaudaron $4025. ¿Cuántos adultos y cuántos niños entraron?​

he sells x mount because thats eqivilqant to the maz and then divided into quarters

step-by-step explanation:

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