Step by step solution to "To find: The value of x in −85=9x"

ddaeeric

Answered question

2021-08-14

To find: The value of x in

\frac{- 8}{5} = \frac{9}{x}

Nathalie Redfern

Skilled2021-08-15Added 99 answers

Proportion:
A proportion is a statement that two ratios or rates are equal.
If

\frac{a}{b}

and

\frac{c}{d}

are two ratios or rates, then

\frac{a}{b} = \frac{c}{d}

is a proportion.
It can be read as "a is to b as c is to d"

a \cdot d = b \cdot c

is the set of cross product.
Given proportion,

\frac{- 8}{5} = \frac{9}{x}

x \cdot - 8 = 5 \cdot 9

x = \frac{5 \cdot 9}{- 8}

x = \frac{- 45}{8}

Therefore, the value of

x = \frac{- 45}{8}

Jeffrey Jordon

Expert2021-12-17Added 2605 answers

Answer is given below (on video)

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