Ling must spend no more than 40 point 0 0 dollars on decorations for a party. She has spent 10 point 0 0 dollars on streamers and wants to buy bags of balloons as well. Each bag of balloons costs 2 point 5 0 dollars The given inequality represents x , the number of bags she can buy given the spending limit and how much she has already spent on streamers. 10 plus 2 point 5 x is less than or equal to 40 Which best describes the number of bags of balloons she can buy?
Answer
A
She must buy 12 or more bags.
B
She can buy from 0 to 20 bags, but no more.
C
She must buy 20 or more bags.
D
She can buy from 0 to 12 bags, but no more.
Explanation
Subtract the $10.00 already spent on streamers from the $40.00 limit, leaving $30.00 for balloons. At $2.50 per bag, she can buy at most $30.00 ÷ $2.50 = 12 bags. Since she could buy none, she can buy from 0 to 12 bags, but no more.
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