spectacularpeople
spectacularpeople
02-05-2018
Mathematics
contestada
help again!!!
answer this
Respuesta :
cashmoney12313p3v35a
cashmoney12313p3v35a
02-05-2018
The answer is 7.
x + 8 + 2x - 5 = 10 + 14
x + 8 + 2x - 5 = 24
+ 5 = +5
x +8 + 2x = 29
-8 -8
x + 2x = 21
put the x's together
3x = 21
divide
x= 7
check 3 x 7 = 21
Answer Link
budwilkins
budwilkins
02-05-2018
Same rule as the last problem I solved:
[tex] \frac{x + 8}{10} = \frac{2x - 5}{14} \: \: ... \: cross - multiply \\ 14(x + 8) = 10(2x - 5) \\ 14x + 112 = 20x - 50 \\ - 6x = - 162[/tex]
[tex] - 6x = - 162 \\ \frac{ - 6x}{ - 6} = \frac{- 162}{ - 6} \\ x = 27[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 38+ )
Otras preguntas
3. The two data sets show random samples of the costs, in dollars, of cars purchased at two dealerships yesterday. Dealership 1: 25,000, 42,000, 37,000, 45,000
Refer to the figure above. Which structure carries impulses to the cell body A. I B. II C. III D. IV
Orly uses 2 cups of raisins for every 12 cups of trail mix she makes. How many cups of trail mix will she make if she uses 8 cups of raisins?
How has Rochester’s attitude changed following his injuries in the fire?
Which of the following statements is not required by animals to control body temperature? A. Animals must switch between ectotherm and endotherm methods. B. Ani
Which expression converts 45° to radians?
what is the recursive rule for the sequence -22.7, -18.4, -14.1, -9.8, -5.5 a An=An-1 -4.3 b An=An+1 +4.3 c An=An-1 +4.3 d An=An+1 -4.3
Help Me please Urgent Help 15 Points
What does the graph show about American casualties at Iwo Jima?
what is the recursive rule for the sequence -22.7, -18.4, -14.1, -9.8, -5.5 a An=An-1 -4.3 b An=An+1 +4.3 c An=An-1 +4.3 d An=An+1 -4.3
