MARIAMARIA: 5y+5x=-5
5y+5x=-5
admin: 1 , 2 , 3feet
1 , 2 , 3feet
sddao: y = -2x/3 + 5
y = -2x/3 + 5
sddao: and that passes through the point (8, -20)
and that passes through the point (8, -20)
admin: tobi: lillis rechteckiges gemüsebeet hatte im letzten jahr eine fläche von 36m² x*y=36 tobi: dieses jahr ist ihr beet 1m breiter und 3m kürzer als im letzten jahr (x+1)*(y-3) = 36 [input]solve( x*y=36, (x+1)*(y-3) = 36 )[/input] (x+1)*(y-3) = 36 x*y+1y-3x-3 = 36 x*y +y -3x-3 = x*y |+3 x*y +y -3x = x*y + 3 |-x*y x*y +y -3x -x*y = 3 y -3x = 3 x*y=36 x = 36/y einsetzen: y -3*(36/y) = 3 y -108/y = 3 | *y y^2 - 108 = 3y |-3y y^2 - 3y - 108 = 0 p-q formel: y = 12 oder y=-9 (negative länge offensichtlich unbrauchbar) mit x*y=36, also x = 36/y x = 36/12 = 3 x=3 und y=12
tobi: lillis rechteckiges gemüsebeet hatte im letzten jahr eine fläche von 36m²
lillis rechteckiges gemüsebeet hatte im letzten jahr eine fläche von 36m²
tobi: dieses jahr ist ihr beet 1m breiter und 3m kürzer als im letzten jahr
dieses jahr ist ihr beet 1m breiter und 3m kürzer als im letzten jahr
vasan: hey,2x+35+5x-37=0so its:7x-2=0 |+27x=2 | :7x = 2/7
hey,2x+35+5x-37=0so its:7x-2=0 |+27x=2 | :7x = 2/7
Dianne: The sum of a number and 67 is equal to -34. Find the number?
The sum of a number and 67 is equal to -34. Find the number?
joenelle654: Expression model to this: When Rafa woke up, the temperature was 9°C. By noon, the temperature had increased by 7°C. What was the temperature at noon ?
Expression model to this: When Rafa woke up, the temperature was 9°C. By noon, the temperature had increased by 7°C. What was the temperature at noon ?
james: jerk: how was everyones day! my was good i guess :/ do you study spanish ?
jerk: how was everyones day! my was good i guess :/
how was everyones day! my was good i guess :/
james: it has been great but please quit ask how everybodies day has been or how your day has been cause no one gives a dam.
it has been great but please quit ask how everybodies day has been or how your day has been cause no one gives a dam.
abc: 7a*-0,5a
7a*-0,5a