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3 years ago

What is 3.5x=130+10x

Mathematics

2 answers:

Shalnov [3]3 years ago

6 0

subtract 10 from both sides

-6.5x = 130 divide

-6.5 into 130

steposvetlana [31]3 years ago

4 0

$3.5x=130+10x \ \ |\ subtract\ 10x\ to\ both\ sides \\\\3.5x-10x=130\\\\-6.5x=130\ \ | \ multiply\ both\ sides\ by\ (-10)\\\\65x=-1300\ \ | \ divide \ both \ sides\ by\ 65 \\\\x=-\frac{1300}{65}\\\\x=-20$

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<u>Given</u>:

The given ratio is $16 : 12$

We need to determine three ratios that are equivalent to the given ratio.

<u>Option A</u>: $8:6$

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<u>Option D</u>: $12:8$

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<u>Option E</u>: $24:16$

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Read 2 more answers

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VashaNatasha [74]

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<h3>Further explanation</h3>

Simultaneous Linear Equations could be solved by using several methods such as :

<em>Elimination Method</em>
<em>Substitution Method</em>
<em>Graph Method</em>

If we have two linear equations with 2 variables x and y , then we need to find the value of x and y that satisfying the two equations simultaneously.

Let us tackle the problem!

<em>Number of Commercials = C</em>

<em>Number of Movies = M</em>

$\texttt{ }$

<em>Jaces songs were played on 6 more commercials than movies.</em>

$\boxed{C = 6 + M}$ → <em>Equation 1</em>

$\texttt{ }$

<em>Jace will earn $50 every time one of his songs is played in a commercial and he will earn $140 every time one of his songs is played in a movie.</em>

<em>His total earnings in the royalties from all commercials and movies was $680.</em>

$\boxed{50C + 140M = 680}$ → <em>Equation 2</em>