Answer:
Jacqui made a mistake in her method of dividing 3480 by 5. Her mistake lies in assuming that dividing 3480 by 5 is the same as dividing 348 by 2.
To divide a number by 5, we need to divide it by 10 first and then divide the result by 2. So, Jacqui's first step of dividing 3480 by 10 is correct, which gives us the quotient of 348.
However, her second step of dividing 348 by 2 is incorrect. Dividing the quotient by 2 would give us half of the original quotient, not the actual answer to 3480 divided by 5.
To find the correct answer, we need to divide 3480 by 5. Using long division, we can set it up like this:
696
------------
5 | 3480
Starting from the left, we divide 3 by 5, which gives us 0 with a remainder of 3. We bring down the next digit, 4, to the right of the remainder, giving us 34.
Next, we divide 34 by 5, which gives us 6 with a remainder of 4. We bring down the next digit, 8, to the right of the remainder, giving us 48.
Finally, we divide 48 by 5, which gives us 9 with no remainder.
Therefore, the correct answer to 3480 divided by 5 is 696.
In summary, Jacqui made a mistake in assuming that dividing 3480 by 5 is the same as dividing 348 by 2. The correct answer is 696
Explanation: