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AnimeBrainly

Plug in 12 for x, and 4 for y

3(12) = 36

5(4) = 20

Add the two terms together

36 + 20 = 56

56 is your answer

hope this helps

JeanaShupp

Answer: 36

Step-by-step explanation:

The given mathematical expression : [tex] 3x+5y[/tex], where x and y are variables.

To find the value of the given expression at x=12 and y=4, we need to substitute the given values of x and y in the given expression , we get

[tex] 3(12)+5(4)=36+20=56[/tex]

Hence, the  value of the given expression [tex] 3x+5y[/tex] , when x=12 and y=4 is 36.

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