Question

6х • 0,3 + 4 • (1,3х + 20у

Answer 1

при х = 1, у = 0,1

Пошаговое объяснение:

6х * 0,3 + 4 * ( 1,3х + 20у )  

6*1*0.3+4*(1.3*1+20*0.1)=1.8+4*3.3=1.8+13.2=15

Answer 2

It appears that your expression is not complete. There are missing parentheses and operators. Nevertheless, I'll assume that you intended the expression to be as follows:

$6x \cdot 0.3 + 4 \cdot (1.3x + 20y)$

Let's simplify it step by step:

1. $6x \cdot 0.3$ simplifies to $1.8x$.
2. $4 \cdot (1.3x + 20y)$ simplifies to $5.2x + 80y$.

Therefore, the entire expression simplifies to:

$1.8x + 5.2x + 80y$

Combine the like terms with the variable $x$ to get:

$7x + 80y$