brianamarialove15
31.07.2019 •
Mathematics
The number of dolls that lisa,mia and nina have are in the ratio 6: 4: 7 nina had 21 dolls.how many dolls does lisa have?
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Ответ:
Nina has 21 dollsshe also has 7/17 of the total dolls...
7/17x = 21with x being the total number of dolls
x = 21 / (7/17)
x = 21 * 17/7
x = 357/7
x = 51...so there are 51 total dolls
Lisa : she has 6/17 of the total dolls
6/17 * 51 = 306/17 = 18 dolls <
Mia : she has 4/17 of the total dolls
4/17 * 51 = 204/17 = 12
so in summary, Nina has 21 dolls, Lisa has 18 dolls and Mia has 12 dolls for a total of 51 dolls
Ответ:
Chicken= 97/221
Cow= 47/221
Human= 77/221
Step-by-step explanation: