I
understand percent concepts - instruction - lever
) last month, gianni used 6 gb out of the 8 gb included in his cell phone plan. lamar used
4 gb out of the 5 gb included in his plan. who used a greater percent of his data?

answer: 1) twenty-seven times y

              2) twenty-seven multiplied by y

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

.95

step-by-step explanation: