3 years ago

I need help with number 9, i need to know if the ratio forms a proportion.

1 answer:

6 0

The data in the table are not proportionate because 4 pounds cost 3.55, meaning each pound costs 0.8875 while 6 pounds cost 4.33, which is 0.72166667 per pound.

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Gradient of the line 2y: 4x+3x

andrew11 [14]

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Q: Write the slope intercept form of the equation of the line through the given point with the given slope.

Lelechka [254]

6)

$\bf \begin{array}{lllll}
&x_1&y_1\\
% (a,b)
&({{ 2}}\quad ,&{{ -1}})
\end{array}
\\\\\\
% slope = m
slope = {{ m}}= \cfrac{rise}{run} \implies 0
\\\\\\
% point-slope intercept
\stackrel{\textit{point-slope form}}{y-{{ y_1}}={{ m}}(x-{{ x_1}})}\implies y-(-1)=0(x-2)
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8)

$\bf \begin{array}{lllll}
&x_1&y_1\\
% (a,b)
&({{ 5}}\quad ,&{{ 1}})
\end{array}
\\\\\\
% slope = m
slope = {{ m}}= \cfrac{rise}{run} \implies 3
\\\\\\
% point-slope intercept
\stackrel{\textit{point-slope form}}{y-{{ y_1}}={{ m}}(x-{{ x_1}})}\implies y-1=3(x-5)
\\\\\\
y-1=3x-15\implies y=3x-15+1\implies \boxed{y=3x-14}$

7 0

3 years ago

Write 77.5% as a fraction or mixed number in simplest form

goldfiish [28.3K]

31/40

Step 1: .775= 775/1000
Step 2: 775/1000= 31/40

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Neporo4naja [7]

Answer:

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Step-by-step explanation:

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elena-s [515]

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Step-by-step explanation:

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