Question

390 + 4 900: k= 460230 a + 40 = 10 000:20​

Answer 1

$390 + 4900 \div k = 460 \\ 4900 \div k = 460 - 390 \\ 4900 \div k = 70 \\k = 4 900 \div 70 \\ k = 70$

$230a + 40 = 10000 \div 20 \\ 230a + 40 = 500 \\ 230 a= 500 - 40 \\ 230a = 460 \\ a = 460 \div 230 \\ a = 2$

Answer 2

It seems like you've written an equation with several components. Let's break it down step by step:

1. 390 + 4,900: This is a simple addition operation, and it equals 5,290.

2. k = 460,230: This equation sets the variable "k" equal to 460,230.

3. a + 40 = 10,000 / 20: This equation involves the variable "a." First, you can simplify the right side of the equation by dividing 10,000 by 20, which equals 500. So, the equation becomes "a + 40 = 500."

Now, you can solve for "a" by subtracting 40 from both sides of the equation:

a + 40 - 40 = 500 - 40

a = 460

So, the solution to the equation is "a = 460."

Here's the summary:

• 390 + 4,900 = 5,290
• k = 460,230
• a = 460