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steposvetlana [31]
3 years ago
8

while baking cookies, william accidentally over baked and burned many of the cookies. His "burned ro unburned" rstio was 1 to 3.

He made 45 unburned cookies. what percent of the total cookies were burned.
Mathematics
1 answer:
ryzh [129]3 years ago
3 0
<h3>Given</h3>

burned : unburned = 1 : 3

<h3>Find</h3>

burned/total as a percentage

<h3>Solution</h3>

burned : total = burned : (burned + unburned) = 1 : (1+3) = 1 : 4

As a fraction, this is 1/4 = 0.25 = 25%

25% of the total cookies were burned.

_____

"%" is a fancy way to write "/100". You know from place value that 0.25 (twenty-five hundredths) is 25/100, so that can also be written as 25%.

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