Answer:
4
Step-by-step explanation:
A. Both triangles equal 50 and 10x5 is 50. Therefore, y=5.
Well, your ratio given is 18 to 4. so multiply both numbers (18 and 4) by some number and you will have an equivalent ratio.
example: if you had 2 times as many people, then an equivalent ratio would be 18*2 to 4*2 = 36 to 8
If 0.3 = 1 then 0.9 = 3 because 0.3+0.3+0.3=the 3.
C. a-3x=0
Equations are like a balance scale. There needs to be an “=“
