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Answer:
exact form x = 2/e^2 decimal form is x = 0.27
Step-by-step explanation:
The correct formula is
RN/(1-R) = F.
To solve for F, we start by multiplying by (N+F) to remove it from the denominator:
R(N+F) = F
Distributing, we have:
RN + RF = F
Subtracting RF to collect all of the F's on one side,
RN = F - RF
Factoring out F on the right hand side,
RN = F(1 - R)
Dividing both sides by (1-R),
RN/(1-R) = F
There is no sign in between 2b and 6.
Case 1:
Assuming the sign is '+'
Then, 2b + 6 for b = 9 is given by 2(9) + 6 = 18 + 6 = 24.
Case 2:
Assuming the sign is '-'
Then, 2b - 6 for b = 9 is given by 2(9) - 6 = 18 - 6 = 12.
Case 3:
Assuming the sign is 'x'
Then, 2b x 6 for b = 9 is given by 2(9) x 6 = 18 x 6 = 108.
Case 4:
Assuming the sign is '÷'
Then, 2b ÷ 6 for b = 9 is given by 2(9) ÷ 6 = 18 ÷ 6 = 3.
Two times the difference between five and an unknown quantity
