Concept explainers
To find:the percent of the blue marbles present in the bag
Answer to Problem 43E
The new percent of the blue marbles in the bag is 50%
Explanation of Solution
Given information:
There are 35% blue marble in a bag, bag contain 20 marble, and then 6 blue marbles are added into the bag.
Calculation:
Total number of the marbles in a bag is 20.
Blue marbles present in a bag (in percent) is 35%
So, blue marbles present in a bag (in number) is
Again, 6 marbles are added into bag
Therefore the total number of blue marbles in bag is
And, the total number of marbles in bag is
The new percent of blue marbles in bag after adding 6 blue marbles is
Hence, the percent of the blue marbles in the bag is 50%
Chapter 7 Solutions
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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