The day of the 52-mile double marathon is finally here! Pepe has set the ambitious goal of averaging an 8-minute mile. Pepe finished the first half of the marathon in 195 minutes. What is the maximum number of minutes he can take to finish the second half of the race in order to achieve his goal?

if x decreases by 4 then y increases by 10

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

answer: idk wbu

step-by-step explanation:

c

step-by-step explanation: easy math