Answer: see below
Step-by-step explanation:
3x-12=7x+8 ⇔ given
-12=4x+8 ⇔ addition property of equality
-20=4x ⇔ subtraction property of equality
x=-5 ⇔ division property of equality
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5(x-1)=4x+13 ⇔ given
5x-5=4x+13 ⇔ distributive property
x-5=13 ⇔ subtraction property of equality
x=18 ⇔ addition property of equality
Answer:
Step-by-step explanation:
The average number is given by :
[m + (m - 1200) + (m - 1200)(1.30 ] / 3 =
[ 2m + 1.30m - 1200 - 1560] / 3 =
[3.3m - 2760] / 3 =
[1.1 m - 920 ]
Start by graphing y = |x|. Its vertex is at (0,0), and the graph opens up.
Now translate the entire graph 4 units up. The new vertex will be at (0,4). Draw an empty circle around this point.
Darken the graph of y = |x|+4 ONLY for the part which is left of the y-axis.
Now plot a dark dot at (0,4). Draw a dark, horiz. line from that dot to the right.
That's it!
Yes students should be learning interior angles in 8th grade
