murphykatieperr murphykatieperr
  • 04-05-2014
  • Mathematics
contestada

a piece of wood is 180cm long, Tom cuts it into three pieces in the ratio 2:3:4
Work out the length of the longest piece

Respuesta :

HunterX
HunterX HunterX
  • 04-05-2014
2:3:4
2:3:4 can be written as 2x:3x:4x

2x+3x+4x=180
9x=180
x=20 

Therefore it is
40:60:80
Answer Link
marmal
marmal marmal
  • 04-05-2014
[tex]The\ ratio\ is:2:3:4\\ Let's\ sum\ up\ it:\\ 2+3+4=9\\ \frac{2}{9}*180=40\\ \frac{3}{9}*180=60\\ \frac{4}{9}*180=80\\ The\ longest\ piece\ has\ lenth=80cm[/tex]
Answer Link

Otras preguntas

What are some purposes of Christian art?
If 200 beads cost 48 dollars how much does 25 cost
what does R.A.F.T mean
Circle the sum 9 + 4= 13
how do I write 119000003 in word form
Where is most of earths carbon and sulfur
Annie traveled 5 times the sum of the number of hours Brian traveled and 2. together they traveled 20 hours. find the number of hours each person worked.
with regard to age and social class who were the first settlers
why should we conserve fuel and how in 500 words
Simplify the expression. –16 • 1/8 • 4 + 32 ÷ 2 a. –36 b. 24 c. 8 d. 12