hyrulegaming86
hyrulegaming86 hyrulegaming86
  • 03-10-2018
  • Mathematics
contestada

Need Help Ive been stuck on these for days (Click to Enlarge the Picture)

Need Help Ive been stuck on these for days Click to Enlarge the Picture class=

Respuesta :

tramserran
tramserran tramserran
  • 03-10-2018

CF + FE = CE.  Since F is the midpoint, then CF = FE, So, CF + CF = CE ⇒ 2CF = CE

Now, set up the proportion:

[tex]\frac{BF}{CF} = \frac{AE}{CE}[/tex]

[tex]\frac{23}{CF} = \frac{5x - 4}{2CF}[/tex]    substituted known values

23(2CF) = CF(5x - 4)   cross multiplied

23(2) = 5x - 4      divided both sides by CF

46 = 5x - 4    simplified

50 = 5x         added 4 to both sides

10 = x           divided both sides by 5

Answer: 10



Answer Link

Otras preguntas

If 3x – 10 = 17, what is the value of 6x + 20 ?
Identify the like terms. 9x, 10y, –9y,  10   A. 9x and 10
For f(x)=3x+4, find f(2) and find x such that f(x)=17
The areas of two circles are 36(pi) and 64(pi). What is hte ratio of the diameters? of the circumferences?
What's the value of pi?
Rmshot bought a 3.5oz chocolate bar.within 15minutes he had eaten 0.6 of the bar. How many ounces did he eat?
Which of the following writers did not come from Ireland? a) W. B. Yeats b) James Joyce c) Seamus Heaney d) Oscar Wilde e) none of the above; all came from
how might the history of california have been different if the gold rush had not happened
past perfect tense: the storm STOP by early afternoon.
Michelle has $12.30 in her purse in 1 cent 5 cent and 25 cent coins. if she has an equal number of each coin type how many coins does Michelle have in her purse