Question

(k : 5 + 30) · 6 = 480 45 + Х *7 =225

Answer 1

(k : 5 + 30) · 6 = 480

k : 5 + 30=480:6

k : 5 + 30=80

k : 5=80-30

k : 5=50

k=50*5

k=250

45 + Х *7 =225

Х *7=225-45

Х *7=180

x=180:7

x=25,7142857143

Answer 2

It looks like you have two equations involving variables that need to be solved for. Let's solve them step by step:

1. Equation 1: $(k + 5) \cdot 6 = 480$

First, distribute the 6 on the left side:

$6k + 30 = 480$

Subtract 30 from both sides:

$6k = 450$

Now, divide both sides by 6:

$k = 75$

So, the value of $k$ is 75.

2. Equation 2: $45 + x \cdot 7 = 225$

Subtract 45 from both sides:

$x \cdot 7 = 180$

Now, divide both sides by 7:

$x = \frac{180}{7} \approx 25.71$

So, the value of $x$ is approximately 25.71.

To summarize:

• $k = 75$
• $x \approx 25.71$