nkazmirski3229
20.08.2019 •
Mathematics
In a survey, one out of five people named blue as their favorite color. three out of ten named red. if 1,100 people were included in the survey, how many named blue or red as their favorite color
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Ответ:
5x = 1100
x = 1100 ÷ 5
x = 220
So 220 people named blue as fav.
3/10 = x/1100
3x = 1100
x = 1100 ÷ 3
x = 366.6666 = 367
So 367 people chose red
Ответ:
Step-by-step explanation:
3y - 6 = 18
3y = 24
y = 8