The number of girls varied directly as the number of boys and inversely as the number of teachers. When there were 42 girls, there were 30 boys and 5 teachers. How many teachers were there when there were 45 boys and 35 girls?
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Answer:
Their are 9 teachers when their is 45 boys and 35 girls
Step-by-step explanation:
First lets find the constant k
g=kb/t
42=k30/5
k=7
So k is equal to 7
Now lets find for the unknown
g=kb/t
35=7(45)/t
35=315/t
35t= 315
t=9