._.
c + t = 32 4c + 6t = 148
Great :)
c = -t + 32 4(-t + 32) + 6t = 148 -4t + 128 + 6t = 148 2t + 128 = 148 2t = 20 t = 10
c = -10 + 32 c = 22
so there were 10 trucks and 22 cars?
Yup, Hey, I'm out of job here !!!
lol :) i just wanna make sure i got everything right! this last question is long...let's see how bad it is :<
Thanks for giving out medal for free =D
oh wait, you can't help me with it :/
we can do imaginary coins...
Okie :)
How about dime and quarters!
you'll have to give me your name...are you ok with that? or do i just call you jim-bob?
Make it cool :P
lol i don't see how we can do this...do i tell you how many coins i "have"?
and then you pick a dollar amount?
idk.
20 of them
what do i do...
:/
Total value is $2. 75
OH. i get it
dimes and quarters, right?
Go ahead :)
Let me show you the neat way to show the system :)
d + q = 20 0.10d + 0.25q = 2.75
oh ok
Convert into cents d + q = 20 coins (1) 10 d + 25q = 275 cents (2) -> 10 d + 10q = 200 10 * (1) => 15q = 75 Subtract (2) \ (1) => q = 75/15 = 5 quarters
o-O
@AriPotta May be I solve it in my head most of the time and I thought it's short, when I'm expressing out, I'm unsure if it looks better for your eyes :P
you want me to convert the dollar amount to cents?
idk :/ i've never seen it done like that lol
It's always less error without decimals numbers :)
i mean, i've seen it in cents, just not with the =>
i usually just go line to line to line
Just my way to show it connected from above lines
wait.
As line 1 and 2 are separated, so no arrow !
you used elimination?
i usually do substitution :l
wait. idk what you did lol
Okay, as long as you arrive to the correct result, still some time it's difficult to do substitution, though !
d + q = 20 10d + 25q = 275 d + q = 20 d = -q + 20 10(-q + 20) + 25q = 275 -10q + 200 + 25q = 275 15q + 200 = 275 15q = 75 q = 5
how would you write that with your => and stuff?
d + q = 20 -> d = -q + 20 ( because it's connected from the above line)
d + q = 20 -> 10d + 25q = 275 d + q = 20 -> d = -q + 20 10(-q + 20) + 25q = 275 -> -10q + 200 + 25q = 275 -> 15q + 200 = 275 -> 15q = 75 -> q = 5 like that?
d + q = 20 -> 10d + 25q = 275 (NO arrow, since line 2 not connected to line 1)
oh, but everything else would be correct? is that all you do? what about the parentheses
You shouldn't be bothered about the arrows, like each person has his/her own way of expression :)
oh
Is it time for you to sleep?
d + q = 20 10d + 25q = 275 d + q = 20 d = -q + 20 10(-q + 20) + 25q = 275 -10q + 200 + 25q = 275 15q + 200 = 275 15q = 75 q = 5 d = -q + 20 d = -5 + 20 d = 15
oh i have a crazy sleep schedule lol
i sleep whenever i want and wake up whenever i want :l
=> q = 75/15 = 5 quarters Thus d = 20 - 5 = 15 dimes
2:21am
:) thanks again!
i understand, sleep well :)
and don't be late!
Stick around :)
On the second thought, I still want you to learn my way, it's just 2, 3 lines :P
lol. lemme see. d + q = 20 10d + 25q = 275 d + q = 20 -> d = -q + 20 10(-q + 20) + 25q = 275 -> -10q + 200 + 25q = 275 -> 15q + 200 = 275 -> 15q = 75 -> q = 5 d = -q + 20 ->d = -5 + 20 ->d = 15 is that right?
how would you do it? :/
oh.
"For the following problems show how the problem is set up, the work to solve the problem, along with the solution." i have to show the steps
It's just how I think. See you soon :)
mmk. bai <3
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