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egoroff_w [7]
2 years ago
9

Quick algebra 1 question for some points!

Mathematics
1 answer:
Kazeer [188]2 years ago
7 0
<h2>3)</h2>

\frac{y}{x}  =  \frac{4}{ - 3}  =  \frac{8}{ - 6}  =  \frac{12}{ - 9}  \\ this \: relation \: holds \: so \: y \: varies \\ directly \: with \: x

\frac{ 4}{3} m =  \frac{8}{ - 6}  \\ m =  \frac{ \frac{ - 8}{6} }{ \frac{3}{ - 4} }  =  \frac{8 \times 4}{6 \times 3}  =  \frac{32}{18}  = 2 \\ multipling \: by \: 2

<h2>2)</h2>

\frac{y}{x}  =  \frac{ - 40}{ - 0.5}  =  \frac{8}{2.5}  =  \frac{5}{4}  \\  \frac{y}{x}  = 80 = 3.2 = 1.25 \\ this \: is \: untrue \: so \: y \: is \: not \\ varying \: directly \: with \: x

no \: constant \: of \: variation

<h2>4)</h2><h2>\frac{y}{x}  =  \frac{21}{3}  =  \frac{31.5}{4.5}  =  \frac{38.5}{5.5 \\  }  \\  \frac{y}{x}  = 7 = 7 = 7 \\ y \: varies \: directl y\: with \: x \\ consant \: of \: var =  \frac{y}{x}  = 7</h2><h2>5)</h2>

\frac{y}{x}  =  \frac{30}{6}  =  \frac{35}{7}  =  \frac{96}{8}  \\  \frac{y}{x}  = 5 = 5 = 12 \\ y \: does \: not \: vary \: directly \: with \: x

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fomenos

Answer: 0.1 or 1/10

Step-by-step explanation:

\left(\frac{3}{4}-\frac{2}{3}\right)\cdot \:1\frac{1}{5}

1\frac{1}{5}=\frac{6}{5}

\left(\frac{3}{4}-\frac{2}{3}\right)\cdot \frac{6}{5}

  \frac{3}{4}-\frac{2}{3}    =\frac{9}{12}-\frac{8}{12}

=\frac{1}{12}

\frac{6}{5}\cdot \frac{1}{12}

Cross, cancel common factor

\frac{1}{2}\cdot \frac{1}{5}

=\frac{1}{10}

6 0
2 years ago
How the heck r u supposed to round this? I tried and it says its wrong!
Rus_ich [418]

The result of division is 21.392

Rounded to the nearest tenth its  21.4  answer

(because the hundredth digit  is 9 so you add 1 to the tenth digit.)

5 0
3 years ago
1 What is the value of the expression below?
lozanna [386]

Answer:

a - 1/50 is the ans

1/5 divided by 10 = 0.02

1/50 is also 0.02

7 0
3 years ago
A college conducted a survey of randomly selected freshmen about their choice of major. The table shows the results of the surve
Evgen [1.6K]

Answer: The number of freshman who chose education as their major is greater than the number of freshman who chose science or other as their major ANSWER- D

Step-by-step explanation:

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3 years ago
Write an expression for the sequence of operations described below.
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