Question

Write the expression as a decimal number 7 * 1 + 7*1/10 + 5×1 /100 + 8×1/1000

a) 7.782
b) 7.7815
c) 7.7818
d) 7.7822

Answer 1

To write the expression as a decimal number, simplify each term and add them together. In this case, the expression simplifies to 7.758.

Step-by-step explanation:

To write the expression as a decimal number, we need to simplify each term and then add them together:

1. 7 * 1 = 7
2. 7 * 1/10 = 0.7
3. 5 * 1/100 = 0.05
4. 8 * 1/1000 = 0.008

Adding these terms together, we get:

7 + 0.7 + 0.05 + 0.008 = 7.758

Therefore, the expression as a decimal number is 7.758. None of the given options match this answer.