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Helga [31]
4 years ago
5

Solve for x: 5x+3y=22 y=2x

Mathematics
2 answers:
den301095 [7]4 years ago
8 0
5x + 3y = 22
y = 2x

Substitute y=2x into the first equation

5x + 3(2x) = 22
5x + 6x = 22
11x = 22
x = 2

Hope that helps :)
Kay [80]4 years ago
8 0
\text{We have the ecuation:} \ 5x+3y=22 \\ \text{We know:}\ y=2x \\***********************\\5x+3*(2x)=22 \\ 5x+6x=22\\11x=22\\ \boxed{\bold{x=2}} \\\\ \boxed{\text{The answer is : x=2}} \\\\  \boxed{y=2*2=4}
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The sale price of a used car is $4,160 after a 35% discount. What is the original price of the car?
erik [133]

Answer: The original price was $6,400

Step-by-step explanation: To find the original price, divide the sale price by 1 minus the discount rate:  4160 / (1- 0.35) =  4160 / 0.65 = 6400

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3 years ago
3. Find the slope of the line that passes through the pair of points.<br> (0, 0), (3,5)
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5 0
4 years ago
Use the graphing tool to create a histogram of Gretchen’s data. Use eight bins for your histogram.
lozanna [386]

The number of bins in the histogram determines the width of the bins and

the frequency (number of members) in a bin.

  • Please find attached the graph of the histogram of Gretchen's data created with MS Excel.
<h3 /><h3>Method used to create the histogram of Gretchen's data</h3>

Given:

The table from  Gretchen's data is presented as follows;

\begin{tabular}{|c|c|} \underline{ Member}& \underline{Number of Days}\\x_1&2\\x_2&4\\x_3&7\\x_4&8\\x_5&12\\x_6&15\\x_7&10\\x_8&7\\x_9&9\\x_{10}&6\\x_{11}&13\\x_{12}&3\\x_{13}&8\\x_{14}&10\\x_{15}&10\end{array}\right]

The required number of bins = 8 bins

The steps to create the histogram using MS Excel;

  • Enter the 15 dataset for the number of days as presented in the above table in a column on the worksheet.

  • Select the dataset entered into the cells from above then select the Insert menu.

  • In the Chart section of the insert menu click on the Histogram icon to view the quick options for histograms type charts.

  • Select the Histogram option from the drop down menu from the quick options for histograms, to create an histogram chart.

  • Right-click the histogram created from the previous step, then select Format Chart Area from the pop up menu.

  • In the Format Chart Area task pane, click on the arrow next to Chart Options, then select Horizontal Axis from the options menu.

  • Click on the histogram icon under Axis Options, then click on arrow button besides Axis Option sub menu, to display the axis options.

  • Click on the Number of bins radio button then enter 8, to create an histogram having 8 bins.

The histogram of Gretchen's data having eight bins created with MS Excel is attached.

Learn more about creating a histogram chart here:

brainly.com/question/25069221

brainly.com/question/4601962

5 0
2 years ago
Find the length of the segment indicated.<br><br> A. 16.4<br> B. 11.4<br> C. 12.1<br> D. 13.3
kykrilka [37]

using Pythagorean triplet

\\ \sf\longmapsto P^2=H^2-B^2

\\ \sf\longmapsto x^2=19.6^2-15.4^2

\\ \sf\longmapsto x^2=384.16-237.16

\\ \sf\longmapsto x^2=147

\\ \sf\longmapsto x=\sqrt{147}

\\ \sf\longmapsto x=12.1

4 0
3 years ago
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