A computer store bought a coat of $10 and sold if for $13 find the percent increase

Mathematics

1 answer:

lubasha [3.4K]3 years ago

3 0

Answer:

30% increase

Step-by-step explanation:

30 is 30 percent of 100 so the answer is 30 percent increase

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Sally went school shopping she had a budget of 10.00 she bought a pen for 1.75 and a paper for 1.33 her change was 6.08 how much

irakobra [83]

Answer:

$0.84

Step-by-step explanation:

1. find total cost of both the pen and paper

$1.75 + $1.33 = $3.08

2. find the amount Sally spent

$10 - $6.08 = $3.92

3. find cost of ruler

$3.92 - $3.08 = $0.84

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3 years ago

What are the two solutions to 2x² + 18 = 26

oksano4ka [1.4K]

Answer:

One of the solution is 2

Step-by-step explanation:

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What is the value of x in the equation 3(4x-1)-3x=5-(x-8)?

Setler [38]

12x-3-3x=5-(x-8)
9x-3=5-(x-8)
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2 years ago

A profit function is derived from the production cost and revenue function for a given item. The monthly profit function for a c

SpyIntel [72]

Check the picture below.

$\bf \textit{ vertex of a vertical parabola, using coefficients}\\\\
\begin{array}{lccclll}
P(x) = &{{ -0.05}}x^2&{{ +500}}x&{{ -100000}}\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad 
\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)\\\\
-------------------------------\\\\
\textit{so }-\cfrac{b}{2a}\textit{ units maximize the profit, and}\\\\\\
c-\cfrac{b^2}{4a}\textit{ dollars is the maximum profit}$

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3 years ago

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Anna71 [15]

4/5-3/7. First they need the same denominater: 4/5(7)=28/35, 3/7(5)=15/35. 28/35-15/35. Now subtract numerators: 28-15=13. So your answer H. 13/35 :)

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3 years ago

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