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Proportions A proportion is a statement that to ratios or rates are equal. It can be given as a sentence in words, but most often a proportion is an algebraic equation The arithmetic equation 3 5 3 X 35 = 105 21 35 is a proportion because its cross products are equal. and 5 x 21 = 105 Proportions are solved by using this cross-product rule Example #2 Example #1: 4 = 9 Y 36 72 1.5 12 y

Proportions A proportion is a statement that to ratios or rates are equal It can be given as a sentence in words but most often a proportion is an algebraic equ class=

Respuesta :

We have the following:

example #1

[tex]\begin{gathered} \frac{4}{9}=\frac{y}{36} \\ 9\cdot y=4\cdot36 \\ y=\frac{4\cdot36}{9} \\ y=16 \end{gathered}[/tex]

example #2

[tex]\begin{gathered} \frac{72}{1.5}=\frac{12}{y} \\ 72\cdot y=12\cdot1.5 \\ y=\frac{12\cdot1.5}{72} \\ y=0.25 \end{gathered}[/tex]

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