The graph represents the amount of money in a savings account that began with $1000. how much money is in the account after 15 years? 1. $1600 2. $1800 3. $1700 4. $1500

3. $1700

Step-by-step explanation:

You can figure this out just by looking at the graph and using the process of elimination

option A

Step-by-step explanation:

given,

the saving account began at $ 1000

and we want to calculate the money in the account after 15 years

the attached graph shows the graph between the amount saved and time in years.

on y-axis amount saved is mentioned on x-axis time in years.

when we look to the graph at the value saving at 15 years comes out to be $1600.

hence, the correct answer is option A

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