Respuesta :
The values of the expressions 12 + x is 18, 3x + y is 21, 4y - 10 is 14,
xy is 30.
What is a numerical expression?
A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.
Finding the value of given expression when x = 6 and y = 5 is simply replacing x and y with their numeric values.
Given,
12 + x.
= 12 + 6.
= 18.
3x + y.
= 3(5) + 6.
= 15 + 6.
= 21.
4y - 10.
= 4(6) - 10.
= 24 - 10.
= 14.
xy.
= (5)(6).
= 30.
learn more about numerical expressions here :
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