16. Solve. Circle one.
5t- 5 = 5t+7

i’m so confused

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

Step-by-step explanation:

there are no solutions hope this helps

Step-by-step explanation:

5t−5=5t+7

Step 1: Subtract 5t from both sides.

5t−5−5t=5t+7−5t

−5=7

Step 2: Add 5 to both sides.

−5+5=7+5

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.

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step-by-step explanation:

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