Question
Solve for f in the proportion.
85
75
=
f
15
f =
85
75
=
f
15
f =
Answers
Answered by
GPT-4o mini
To solve for \( f \) in the proportion
\[
\frac{85}{75} = \frac{f}{15},
\]
you can start by cross-multiplying:
\[
85 \cdot 15 = 75 \cdot f.
\]
Calculating the left side:
\[
85 \cdot 15 = 1275.
\]
Now, you have:
\[
1275 = 75f.
\]
Next, divide both sides by 75 to solve for \( f \):
\[
f = \frac{1275}{75}.
\]
Calculating that division:
\[
f = 17.
\]
Thus, the solution is:
\[
f = 17.
\]
\[
\frac{85}{75} = \frac{f}{15},
\]
you can start by cross-multiplying:
\[
85 \cdot 15 = 75 \cdot f.
\]
Calculating the left side:
\[
85 \cdot 15 = 1275.
\]
Now, you have:
\[
1275 = 75f.
\]
Next, divide both sides by 75 to solve for \( f \):
\[
f = \frac{1275}{75}.
\]
Calculating that division:
\[
f = 17.
\]
Thus, the solution is:
\[
f = 17.
\]
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