nick4524
19.08.2019 •
Mathematics
4/15 of the 315 members of a book club are male. how many members r female?
a.) 131
b.) 231
c.) 174
d.) 84
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Ответ:
m=4*315/15
m=1260/15
m=84
f=315-84
f=231
Corect answer : B
Ответ:
2 bicycles
Step-by-step explanation:
let no. of bicycles be xno.of tricycles = (6 -x)as there were 5 bicycles and tricycles
now,
a bicycle has 2 wheels a tricycle has 3 wheelstotal no.of wheels = 16
2x + 3(6 - x) = 16
2x + 18 - 3x= 16
2 - x = 0
2 = x
therefore, there are 2 bicycles.