ok this is a long one I will have to do it in 3 parts Use x to represent trucks with automatic transmissions and y to represent those with standard transmissions. Write an equation that expresses this situation. I got x+y=136 then As the sales person takes you around the lot, he mentions that there are 3 times as many trucks with automatic transmissions than with standard. Using the same variables as in question 1, write an equation that expresses this fact. I got 3x+y=136 now how do i get
Use the equations from questions 1 and 2 to write a system of equations. Use the substitution method

Question

ok this is a long one I will have to do it in 3 parts  Use x to represent trucks with automatic transmissions and y to represent those with standard transmissions.  Write an equation that expresses this situation. I got x+y=136 then As the sales person takes you around the lot, he mentions that there are 3 times as many trucks with automatic transmissions than with standard.  Using the same variables as in question 1, write an equation that expresses this fact. I got 3x+y=136 now how do i get 
Use the equations from questions 1 and 2 to write a system of equations.  Use the substitution method

amistre64 · Answer

ow ow ow ow ow....my eyess!!!, can you clean this up any :)  Im sure there are 2 equations in it that can be "systemized".

amistre64 · Answer

id use A and S as the variables really...

amistre64 · Answer

how can x+y = 136  that would mean that the total number of trucks is 136.

then you get 3(x) + y = 136......it doesnt make sense.  you increased the amount of x by a factor of "3" but still have the same number of trucks...

the only way that is possible is if there are no "x" trucks

anonymous · Answer

the problem states there are 146 cars total

amistre64 · Answer

then x+y = 146 in total?   right?

anonymous · Answer

i am so sorry 136

amistre64 · Answer

.......i can work it with either number, i just need to know which one to use  :)

anonymous · Answer

x+y=136
3x+y=136 
this needs to be done in subtraction method

amistre64 · Answer

Ima use A and S....for auto and standard.... ok?

A + S = 136

A = 3S

this is the info we got

amistre64 · Answer

there are 3 times as many automatics as standards....so A = 3S..right?

amistre64 · Answer

3S + S = 136

4S = 136

S = 136/4

S = 34

A = 102

anonymous · Answer

Yes there are 3 times as many automatic than standard trucks. I dont know if i worte it out correct. I had 3A+S=136 but i dont think this seems to be right

amistre64 · Answer

it aint right :)  total trucks is 136...you cant have 3 times as many MORE trucks and still have 136 unless there were NO trucks of that kind to begin with.... to I assume there is an error

amistre64 · Answer

if anything:

A - 3S = 0

anonymous · Answer

ok thank you so much. I have one more question for you how did you get A=102 did you just subtract the 136- 34?

amistre64 · Answer

yup....