2. in which situation do the quantities
combine to make ?
a. emily ran 3 miles on saturday and
walked 3 miles on sunday,
b beverly bought a chair for $350 and
sold it 3 years later for $350.
c. josh ran 2 laps counterclockwise
around a track and then 2 laps
clockwise around the track.
d. trey deposited $150 into his savings
account on friday and withdrew $100
the following week

yo answer should be 6 if im not mistaken

step-by-step explanation:

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm

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