A tree that is 8 feet tall is growing at a rate of 2 feet each year. A tree that is 16 feet tall is growing at a rate of 1 1/2 feet each year. Enter the number of years it will take the two trees to reach the same height

8.

This is because for every 2 years the 10 foot tree will grow one foot and for every year the 8 foot tree will grow one foot.

It takes 8 years fort the 10 ft tree to be:16

This is because you do:

2+2+2+2+2+2+2+2=16

It takes 8 years for the 8 food tree to be: 16

You do:

2+2+2+2+2+2+2+2=16 and we added it 8 times and in 8 years it will be 16

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Heart or brain me!

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

investment b is an ordinary annuity with $3,909.64 in the account after one year.

step-by-step explanation: