Step-by-step explanation:
all odd numbers
that should <em>be</em><em> </em><em>the</em><em> </em><em>answer</em><em> </em>
Answer:
Step-by-step explanation:
- My age = m
- Sister's age = s
<u>Equations:</u>
<u>Substitute s into first equation and solve for m:</u>
- m + 2m - 3 = 30
- 3m - 3 = 30
- 3m = 33
- m = 11
<u>Find s:</u>
- s = 2*11 - 3 = 22 - 3 = 19
Not sure what alive by graphing means, but these are the equations on a graph. Red is y=4x+7 and blue is y=-3x.
:^)
80 posters.
Both equations are equal to y, so you can set them equal to each other
(4x=1/2x+280). Then you solve for x with 3.5x=280, divide by 3.5, and get x=80. Hope this helps :)
