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The ratio of Luis´s salary and Andres´s salary is 5 to 3. In July by mistake, Andres received $720 more, which received the same amount from Luis. How much is Luis´s salary?

Sagot :

Answer:

Luis Salary is  1800 dollars

Step-by-step explanation:

Ration of Luis´s salary and Andres´s salary is 5:3

[tex]\frac{L}{A} = \frac{5}{3}\\3L -5A = 0[/tex] -- Eq (1)

Let Luis salary be X

Then Andrews salary in July would be A + 720 while Luis salary in July is L

L = A + 720  ---E q (2)

Substituting the values in above equation 1, we get -

[tex]3 ( A +720 ) -5A = 0\\2 A = 720 *3\\A = 1080[/tex]

Luis Salary is

[tex]A + 720 = 1800[/tex]