asked 233k views
3 votes
PLEASE HELP!!

Dalia buys 20 collectible gems per month. Grace sells 10 gems from her collection of 120 each month. When will Dalia have more gems than Grace? Show your work.

asked
User TheiNaD
by
8.3k points

1 Answer

5 votes

Answer:

After 5 months

Explanation:

Dalia's buying rate = 20 gems/month

Grace's selling rate = 10 gems/month

Assuming Dalia starts at 0, and grace at 120, we plot a graph of gems against time.

Let:

gems = Y

months = X

Grace's equation is:
y = -10x+120

Dalia's equation is:
y = 20x

Refer to attached image: so, it takes 5 months.

PLEASE HELP!! Dalia buys 20 collectible gems per month. Grace sells 10 gems from her-example-1
answered
User Jeff Hernandez
by
8.7k points
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