3 PART PROBLEM:
Jen bought some sesame bagels and some plain bagels. The ratio of the number of sesame bagels to the number of plain bagels is 1:3.
a)What fraction of the bagels are plain?
b)What percent of the bagels are plain?
c)If Jill bought 2 dozen bagels, how many of each type of bagel did she buy?
Thank you!
The trick is:
Out of every four bagels one is sesame and three are plain
so that
sesame/plain = 1/3
sesame/all = 1/4 = .25 = 25%
plain/all = 3/4 = .75 = 75%
(1/4) 24 = 6 sesame
(3/4) 24 = 18 plain
the awnser is 3/4=0.75=75%
You add 1 + 3 because that is the total number of bagels that Jen bought.
a) To find the fraction of the bagels that are plain, we need to first determine the total number of parts in the ratio. The ratio is given as 1:3, which means there are a total of 1+3=4 parts.
Since the ratio represents the number of sesame bagels to plain bagels, we can consider the 3 parts as representing the plain bagels.
Therefore, the fraction of plain bagels is 3/4.
b) To find the percent of bagels that are plain, we can convert the fraction to a percentage.
To do this, we divide the numerator of the fraction (3) by the denominator (4), then multiply by 100 to get the percentage.
(3/4) * 100 = 75%
Therefore, 75% of the bagels are plain.
c) If Jill bought 2 dozen bagels, we need to determine how many of each type of bagel she bought.
Since a dozen is equal to 12, 2 dozen bagels would be equal to 2 * 12 = 24 bagels in total.
Since the ratio of sesame bagels to plain bagels is 1:3, we can divide the total number of bagels (24) into 4 parts (1 + 3).
Each part represents 24 / 4 = 6 bagels.
Therefore, Jill bought 6 sesame bagels and 6 * 3 = 18 plain bagels.