Question

5х-3у если х=12 2\5 у=9 2\3

Answer 1

Надеюсь, что правильно решила с:

Answer 2

To evaluate the expression 5x - 3y when x = 12 and y = 9 2/3, we substitute the given values into the expression and perform the calculations:

5(12) - 3(9 2/3)

= 60 - 3(29/3)

To simplify further, we can multiply 3 by the fraction 29/3:

= 60 - (3 * 29/3)

= 60 - (87/3)

To subtract fractions, we need a common denominator:

= 60 - (87/3) * (3/3)

= 60 - 261/3

Now, let's convert 60 to a fraction with the same denominator as 261:

= (60 * 3/3) - 261/3

= 180/3 - 261/3

= (180 - 261)/3

= -81/3

= -27

Therefore, when x = 12 and y = 9 2/3, the value of the expression 5x - 3y is -27.