Final answer:
To make the equation 0.77x = 2.31 true, x must be 3 after dividing both sides of the equation by 0.77.
Step-by-step explanation:
To find which value of x makes the sentence 0.77x = 2.31 true, we can isolate x by dividing both sides of the equation by 0.77.
Here's the calculation:
- Divide 2.31 by 0.77
- x = 2.31 / 0.77
- x = 3
Thus, x = 3 satisfies the equation 0.77x = 2.31, which corresponds to option c).