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OpenStudy (anonymous):
its A
jigglypuff314 (jigglypuff314):
not quite...
if you isolate the y's for both you get
y = -x + 42
and y = x - 6
so red line is crossing negative 6 with positive slope
and black line is crossing 42 with negative slope
OpenStudy (anonymous):
24 and 18
jigglypuff314 (jigglypuff314):
*not quite D
I meant.
but A is right...
OpenStudy (anonymous):
:)
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jigglypuff314 (jigglypuff314):
yeah :) I got 45
x + y = 180
3x = y
jigglypuff314 (jigglypuff314):
Tim is older than Melissa
which is less? 8 or 13?
jigglypuff314 (jigglypuff314):
yup :)
jigglypuff314 (jigglypuff314):
system of equations
3x - y = 4 --> y = 3x - 4
6x + 2y = -8
-> 6x + 2(3x - 4) = -8
6x + 6x - 8 = -8
12x = 0
x = 0
jigglypuff314 (jigglypuff314):
yep :)
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jigglypuff314 (jigglypuff314):
A is correct :)
jigglypuff314 (jigglypuff314):
50x + 20y = 5300
x + y = 130 <- that one
jigglypuff314 (jigglypuff314):
t = 5 + m
D
jigglypuff314 (jigglypuff314):
yup :)
jigglypuff314 (jigglypuff314):
subtract 2x from both sides
D
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jigglypuff314 (jigglypuff314):
I was thinking D
jigglypuff314 (jigglypuff314):
ok :)
jigglypuff314 (jigglypuff314):
s = 2T - 5
B
jigglypuff314 (jigglypuff314):
A would be correct :)
jigglypuff314 (jigglypuff314):
yeah C
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jigglypuff314 (jigglypuff314):
A
jigglypuff314 (jigglypuff314):
C and I gtg... :/
jigglypuff314 (jigglypuff314):
na, sorry, if I don't leave now I'll get kicked off forever 0.o