Answer:
If they are equivalent, both the sides will be equal.
Step-by-step explanation:
Let g = original # of girls at the assembly.
Let w = # of boys at the assembly.
Equation of ratios:
w 3 boys
------- = ---- = --------------------------------------------
g-12 4 girls after 12 have left assembly
4w + 36
Cross-mult., 4w = 3g - 36, so 4w + 36 = 3g, and g = --------------- (answer)
4
This is "original # of girls at the assembly in terms of w, the # of boys at the assembly."
Answer:
5c+50
Step-by-step explanation:
5c comes from the 5 videos that cost <em>c</em><em> </em>dollars. 50 is when you add the $30 for the DVD and $20 for the CD together. You add those up to get the answer, but you'll have to solve for <em>c</em><em> </em>first, then you can solve it.