Answered

Join IDNLearn.com today and start getting the answers you've been searching for. Ask anything and receive well-informed answers from our community of experienced professionals.

How do i solve each proportion?

How Do I Solve Each Proportion class=

Sagot :

Iloveonedirectionidn
You have to cross multiply (multiply the numerator of the first by the denominator of the second and the numerator of the second by the denominator of the first).

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

[19]

[tex] \frac{x+4}{3} = \frac{4}{10} [/tex]

[tex]10x+40=12[/tex]

[tex]10x = -28[/tex]

[tex]x=-2.8[/tex]

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

[21]

[tex] \frac{4}{n+8} = \frac{10}{8} [/tex]

[tex]32 = 8n + 64[/tex]

[tex]8n = -32[/tex]

[tex]n=-4[/tex]
Tadvisohil886idn
[tex]19) \frac{x + 4}{3} = \frac{4}{10} \\ \\ x + 4 = \frac{4}{10} * 3 \\ \\ x = 1.2 - 4 = -2.8 \\ \\ x = -2.8 \\ \\ \\ 20) \frac{4}{n+8} = \frac{10}{8} \\ \\ 32 = 8n + 64 \\ \\ 8n = 32 -64 = -32 \\ \\ 8n = -32 \\ \\ n = -4 [/tex]
Thank you for contributing to our discussion. Don't forget to check back for new answers. Keep asking, answering, and sharing useful information. Your search for answers ends at IDNLearn.com. Thank you for visiting, and we hope to assist you again soon.