Number x is 10% more than number y. Number y is 10% more than number z. How much percent is number z less than number x? pls step by step​

fourth month

step-by-step explanation:

it is the one with the most keychains.

0.32

step-by-step explanation:

2.24/7

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