Mmmm could some plz give me the answer to this hard question

Option A:

All of Jaiden's work is correct. The solution is x = 31.

Solution:

Given equation is 3x – 8 = 2x + 23.

Step 1: 3x – 8 = 2x + 23

Subtract 2x on both side of the equation, we get

⇒ 3x – 8 – 2x = 2x + 23 – 2x

⇒ x – 8 = 23

Step 2: x – 8 = 23

Add 8 on both sides of the equation.

x – 8 + 8 = 23 + 8

x = 31

Step 3: x = 31

The solution is x = 31.

Option A is the correct answer.

So, all of Jaiden's work is correct. The solution is x = 31.

linearly: 8560 bacteria

exponentially: approximately 75233 bacteria

step-by-step explanation:

assuming it is not exponential (we would have some really complicated logarithms), let's say it is linear. then, after 5 hours, it increased by 1200 bacteria, so every hour it increases by 240 bacteria. this means that after 19 hours, we get 19 * 240 + 4000 bacteria or 3800 + 760 + 4000 = 7800 + 760 = 8560 bacteria.

because it says round your answer, i will do this exponentially (with a calculator, of course). first, we need to find how much it multiplies by every hour, by taking the 5th root of 52/40 or 13/10. this is approximately 0.167. we still need to add 1 to this, because we are multiplying by that number, not adding that amount of the number. now, we just calculate 4000 * (1.167)^19. use a calculator to get approximately 75232.6, or 75233.

the nearest power is 1.651.

means 7482 to the 1.651th power is almost equal to 2489287