Question

http://prntscr.com/m5h577

Answer 1

@Vocaloid

Answer 2

because the small and big triangles are similar

BD/CE = AD/AE

solve for x

Answer 3

x=(2.7)(5)/2.4 =40/9 =4.4cm

i think right?

Answer 4

BD = 5.0
CE = 7.4
AD = x
AE = x + 2.7

therefore the ratio becomes

5/7.4 = x/(x+2.7)

Answer 5

is that rounded to the nearest tenth?

Answer 6

you have to solve for x, then round to the nearest tenth.

Answer 7

i got 4.4

Answer 8

5/7.4 = x/(x+2.7)

cross multiplying gives us

(x+2.7)*5 = x*7.4

distribute the 5, combine like terms, solve for x.

Answer 9

5.6

Answer 10

good, x = 5.6