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GalinKa [24]
3 years ago
13

What is 428÷7 what need help​

Mathematics
3 answers:
shtirl [24]3 years ago
8 0

Answer: <em>61.1428571429 </em>i think :)

DENIUS [597]3 years ago
3 0

Answer:

61.1428

Step-by-step explanation:

Brianna H3 years ago
0 0

61 with one left over.

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How many DVDs would they each have if they continued the same pattern for ten ADDITIONAL weeks.​
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Step-by-step explanation:

60 and 64 :)

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Si el gerente de control de calidad desea estimar la media de vida de lámparas con 20 horas, con un nivel de confianza del 95% y
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English translation:

If the quality control manager wants to estimate the average life of lamps with 20 hours, with a confidence level of 95% and an error of 10% is assumed. What is the sample size?

6 0
3 years ago
A carrot cake recipe calls for 3 cups of flour, 2 cups of sugar, and 1 cup of carrots. What is the ratio of sugar to flour? A. 3
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I

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The ratio of sugar to flour is 2 is to 3 cups

3 0
3 years ago
. A firm produces a commodity and receives $100 for each unit sold. The cost of producing and selling x units is 20x + 0.25x 2 d
kirza4 [7]
So for each unit they get $100, so if they sell "x" units, they intake 100x, that's just the gross income, and therefore the Revenue.

Now, they have a cost of 20x + 0.25x² if they "x" units, now, bearing in mind that if you pluck out the costs out of the incoming revenue, what's leftover, is a surplus amount, namely the Profit.  Therefore, profit p(x) = revenue - costs, or  100x - (20x + 0.25x²), which is p(x) = -0.25x² +80x.

a)
now, what's the highest profit they can make?  check the picture below.

\bf p(x)=-0.25x^2+80x\\\\&#10;-------------------------------\\\\&#10;\textit{ vertex of a vertical parabola, using coefficients}\\\\&#10;\begin{array}{lcclll}&#10;p(x) = &{{ -0.25}}x^2&{{ +80}}x&{{ +0}}\\&#10;&\uparrow &\uparrow &\uparrow \\&#10;&a&b&c&#10;\end{array}\qquad &#10;\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad  {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)&#10;\\\\\\&#10;\left( -\cfrac{80}{-0.50}~,~0-\cfrac{80^2}{-1} \right)\implies \left( \stackrel{\textit{quantity}}{160}~,~\stackrel{\textit{profit value}}{6400}  \right)

b)

well, if a tax is imposed on them, and say, they take it out of the revenue, then their new revenue is not 100x, is 90x, thus   \bf p(x)=-0.25x^2+70x

and you can use the same formula as above to get the x-coordinate for that vertex.

\bf p(x)=-0.25x^2+70x\\\\&#10;-------------------------------\\\\&#10;\textit{ vertex of a vertical parabola, using coefficients}\\\\&#10;\begin{array}{lcclll}&#10;p(x) = &{{ -0.25}}x^2&{{ +70}}x&{{ +0}}\\&#10;&\uparrow &\uparrow &\uparrow \\&#10;&a&b&c&#10;\end{array}\qquad &#10;\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad  {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)&#10;\\\\\\&#10;\left( -\cfrac{70}{-0.50}~,~0-\cfrac{70^2}{-1} \right)

7 0
3 years ago
What is the equation of a line passing through the point (1,2) and parallel to the line y=3x+2?
vova2212 [387]
Y=3x-1 have a great day!!
3 0
3 years ago
Read 2 more answers
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