Write as percents
1) 3/5
2)7/8
3)4/25
4)27/50
write as fractions
1)50%
2)34%
3)56%
4)33 1/3%

1)3/5=60%

2)7/8=87.5%

3)4/25=16%

4)27/50=54%

fractions

1)50%=0.5

2)34%=0.34

3)56%=0.56

4)331/3%=1.1033

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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

1. supplementary angles

2. acd and bcd

step-by-step explanation: