Question

7,5 x+6,9y при x=8 y=3

Answer 1

7,5*8 + 6,9*3 = 60+20,7 = 80,7
ответ 80,7

Answer 2

To evaluate the expression 7.5x + 6.9y when x = 8 and y = 3, substitute the given values into the expression:

7.5(8) + 6.9(3)

= 60 + 20.7

= 80.7

Therefore, when x = 8 and y = 3, the value of the expression 7.5x + 6.9y is 80.7.