In the past, marcie's father rode his bike 108 miles in 7.5 hours. her mother rose the same distance in 8 hours marcie plans to ride her bike 108 miles at a steady rate of 18 mph for y hours. will she match her fathers of mothers time? use the equation 108 divided by y equal 18 to justify your answer

2, 2, 2 or -4, 20, 29

step-by-step explanation:

there is two ways you can do it.

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