For the equations y=3.5x and y=25x + 40.50, x represents time in hours and y represents cost in dollars . which equation is not the equation of proportional relationship? explain.

Step-by-step explanation:

We have been given two equations. We are asked to choose the equation, which is not proportional.

We know that two proportional quantities are in form , where k is constant of proportionality.

We can see that the equation is a proportional equation, where constant of proportionality is 3.5.

We can see that the equation is not a proportional equation as it has a constant.

Therefore, the equation is not a proportional.

yes because they have the same amount of green and blur marbles.

step-by-step explanation:

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4