dixieisthebestdog
Answered

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a bag of candy contains 300 pieces of which 28% are red.


Jah-lin told his math teacher that he could use the answer from example 3 and mental math to find the number of pieces of candy that are not red.


explain.

Sagot :

cenderwinstead

Answer:

84 are red, 216 are non red

Step-by-step explanation:

if the bag has 300 pieces, then that's 100% of the sum of red + non red candies

28/100 x 300 = 84 are red

300 - 84 = 216 are non red

I dont know what example 3 is so I cant answer according to that

Answer:

216 candies are not red

Step-by-step explanation:

300 = Total candies

28% = Percent of candies that are red

100% - 28% = 72%  

72% = Percent of candies that are NOT red

My personal preference for setting up this type of question:

300 -> 100% (Total candies)

___ -> 72% (NOT red candies)

___ -> 28% (Red candies)

Next:

28% = 0.28

300 x 0.28 = 84

84 = Number of candies that are red

300 -> 100% (Total candies)

___ -> 72% (NOT red candies)

84   -> 28% (Red candies)

Now:

300 - 84 = 216

300 -> 100% (Total candies)

216 -> 72% (NOT red candies)

84 -> 28% (Red candies)

216 equals the number of candies that are NOT red.

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