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Solve for $p$ . $\newline$ $\frac{7}{p} = \frac{8}{9}$ $\newline$ $p = \square$

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Mean, median, mode, and range: find the missing number

Full solution

Q. Solve for

p

.

\newline

\frac{7}{p} = \frac{8}{9}

\newline

p = \square

Set up proportion: Set up the proportion from the given system of equations. $\newline$ We have the proportion $\frac{7}{p} = \frac{8}{9}$ .
Cross-multiply to solve: Cross-multiply to solve for p. $\newline$ $7 \times 9 = p \times 8$ $\newline$ $63 = 8p$
Divide to isolate: Divide both sides of the equation by $8$ to isolate p. $\newline$ $p = \frac{63}{8}$

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