Equation: y = 52c + 39w
Plug in 5 for c and 10 for w
52(5) + 39(10) = 260 + 390 = 650 calories
![\boxed{\sf \:\begin{cases}\\\begin{gathered} {\underline{{ \sf {\blue{\Large\bf \underbrace{ {\rm {\purple{\begin{array}{r | l}\large\rm{\red{ 5}}&\underline{315,420,525}\\\large\rm{\red{ 3}}& \underline{63,84,105}\\\large\rm{\red{3}}&\underline{21,28,35}\\\large\rm{\red{ 7}}&\underline{7,28,35}\\\large\rm{\red{2}}&\underline{1,4,5}\\\large\rm{\red{2}}&\underline{1,2,5}\\\large\rm{\red{5}}&\underline{1,1,5}\\&1,1,1\end{array}}}}} }}}}}\end{gathered}\\\end{cases}}](https://tex.z-dn.net/?f=%5Cboxed%7B%5Csf%20%5C%3A%5Cbegin%7Bcases%7D%5C%5C%5Cbegin%7Bgathered%7D%20%7B%5Cunderline%7B%7B%20%5Csf%20%7B%5Cblue%7B%5CLarge%5Cbf%20%5Cunderbrace%7B%20%7B%5Crm%20%7B%5Cpurple%7B%5Cbegin%7Barray%7D%7Br%20%7C%20l%7D%5Clarge%5Crm%7B%5Cred%7B%205%7D%7D%26%5Cunderline%7B315%2C420%2C525%7D%5C%5C%5Clarge%5Crm%7B%5Cred%7B%203%7D%7D%26%20%20%5Cunderline%7B63%2C84%2C105%7D%5C%5C%5Clarge%5Crm%7B%5Cred%7B3%7D%7D%26%5Cunderline%7B21%2C28%2C35%7D%5C%5C%5Clarge%5Crm%7B%5Cred%7B%207%7D%7D%26%5Cunderline%7B7%2C28%2C35%7D%5C%5C%5Clarge%5Crm%7B%5Cred%7B2%7D%7D%26%5Cunderline%7B1%2C4%2C5%7D%5C%5C%5Clarge%5Crm%7B%5Cred%7B2%7D%7D%26%5Cunderline%7B1%2C2%2C5%7D%5C%5C%5Clarge%5Crm%7B%5Cred%7B5%7D%7D%26%5Cunderline%7B1%2C1%2C5%7D%5C%5C%261%2C1%2C1%5Cend%7Barray%7D%7D%7D%7D%7D%20%7D%7D%7D%7D%7D%5Cend%7Bgathered%7D%5C%5C%5Cend%7Bcases%7D%7D)
LCM = 5 × 3 × 3 × 7 × 2 × 2 × 5
LCM = 6300
<u>Hence, the LCM of 315 , 420 , 525 is 6300</u>
2 1/4 is already simplified but to make it into a mixed number the answer is 9/4
The system of equations when been placed in a matrix yields
![\left[\begin{array}{ccc}650&-1\\120&1\end{array}\right]\left[\begin{array}{ccc}x\\y\end{array}\right] =\left[\begin{array}{ccc}-175\\25080\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D650%26-1%5C%5C120%261%5Cend%7Barray%7D%5Cright%5D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Dx%5C%5Cy%5Cend%7Barray%7D%5Cright%5D%20%20%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-175%5C%5C25080%5Cend%7Barray%7D%5Cright%5D)
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more variables and numbers.
Given the equation:
y = 650x + 175 and;
y = 25080 - 120x
Rearranging the equations gives:
650x - y = -175 and;
120x + y = 25080
Placing the equations in a matrix gives:
![\left[\begin{array}{ccc}650&-1\\120&1\end{array}\right]\left[\begin{array}{ccc}x\\y\end{array}\right] =\left[\begin{array}{ccc}-175\\25080\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D650%26-1%5C%5C120%261%5Cend%7Barray%7D%5Cright%5D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Dx%5C%5Cy%5Cend%7Barray%7D%5Cright%5D%20%20%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-175%5C%5C25080%5Cend%7Barray%7D%5Cright%5D)
The system of equations when been placed in a matrix yields
![\left[\begin{array}{ccc}650&-1\\120&1\end{array}\right]\left[\begin{array}{ccc}x\\y\end{array}\right] =\left[\begin{array}{ccc}-175\\25080\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D650%26-1%5C%5C120%261%5Cend%7Barray%7D%5Cright%5D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Dx%5C%5Cy%5Cend%7Barray%7D%5Cright%5D%20%20%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-175%5C%5C25080%5Cend%7Barray%7D%5Cright%5D)
Find out more on equation at: brainly.com/question/2972832
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I think non chain retailers wholesale their products at about 50% off retail it really depends on the product.