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emanihackle9
29.11.2020 •
Mathematics
The ratio of boys to girls in the 7th grade is 2:3 If there are 24 boys, how many girls are there?
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Ответ:
If 2/3 is boys to girls, then,
2/3 = 24/x
x = 36 girls
If 2/3 is girls to boys, then,
2/3 = x/24
x = 16 girls
Ответ:
If there are 24 boys then you’d divide the ratio from the boys part of the ratio (2) with the total (24) which is 12. The multiply 12 with the ratio number from the girls side of the ratio which is 3 to get the new ratio of both
2:3 ratio of boys:girls
Total: 24 boys
24(total boys) /2 (from ratio of boys) = 12 (difference)
12(difference) x 3 (from ratio of girls) = 36 (total girls)
New ratio of boys to girls is a 24:36
Note: if the ratio of boys increase then the ratio for girls increases by the same amount
Ответ:
Monster Ski, because Super Ski has lessons for THREE days, instead of the 2. That costs over $380 for the lessons and drive. Monster Ski has lessons for 75 an hour, and that is $300 for 2 hours. A little over 305 with the drive.