Okay, these get easy with practice so don't post all of these online. First, substitute y in 3x-2y=9 for what it says y equals (2x-7). You now have: 3x-2(2x-7)=9. Breakdown:
3x-2(2x-7)=9
3x-4x+14=9
-1x=-5
x=5
next solve for y
y=2x-7
y=2(5)-7
y=10-7
y=3
And now we have x=5, and y=3.
0.1 x 2 = 0.2 When you multiply 0.1 and 2, you move the decimal once because there is one decimal place.
Answer:
3.9
Step-by-step explanation:
if one point is 7.8 and the other is 3.9
you would subtract 7.8 and 3.9
the answer is 3.9 away from each other
Answer:B
Step-by-step explanation:
Step-by-step explanation:
a two -column proof for the following :
Given: angle1 and angle2 form a linear pair and m angle1= 2(m angle2)
Prove : m angle2 =60
10. Write a two-column proof for the following:
Given : AB