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the number of students who study only French = f;

the number of students who study only Spanish = s;

the number of students who study both French & Spanish = b;

Thus,

the number of students who study French = f + b;

the number of students who study Spanish = s + b;

the number of students who study neither French nor Spanish = n = b (given)

=> f + s + b + n = 200 => f + s + 2b = 200 ---(1)

Given 'One-quarter of those who study Spanish also study French,' we have (s + b)/4 = b => s = 3b ---(2)

Given 'The total number who study French is 10 fewer than those who study Spanish only,' we have f + b = s - 10 => s = f + b + 10 ---(3)

From (2) and (3), we have f + b + 10 = 3b => f = 2b - 10 ---(4)

From (1) and (4), we have

f + s + 2b = 200

=> 2b - 10 + 3b + 2b = 200

b = 30

Thus, f = 2b - 10 = 2*30 - 10 = 5

Hope this helps!

y-1700=200(x+4)

step-by-step explanation:

200(x+4) is 200x + 800 she is saving 200 per week x is the weeks and the -1700 is. us that’s howmuch she already had

4/6 = 2/3

so it should take 3/3 hours per man. so 9 hours is the answer 3*3 =9

step-by-step explanation: