Question

What is the proper solution to the following equation? (151.1 + 2.45 + 3.675) ÷ (0.660 + 0.3470) = 1. 1.561321 × 102 2. 1.56 × 102 3. 1.56132 × 102 4. 1.5613207 × 102 5. 1.5613 × 102 6. 1.5 × 102 7. 1.561 × 102 8. 2 × 102

Answer 1

Step-by-step explanation:2.) 1.5613207 × 10^2

3.) 1.561 × 10^2

4.) 1.56 × 10^2

5.) 1.5613 × 10^2

6.) 2 × 10^2

7.) 1.561321 × 10^2

8.) 1.5 × 10^2

Answer 2

The correct options are,

1.561321 × 10²,

1.56 × 10²,

1.56132 × 10²,

1.5613 × 10²,

1.561 × 10²

Explanation:

Given expression,

(151.1 + 2.45 + 3.675) ÷ (0.660 + 0.3470),

= 157.225 ÷ 1.007

= 156.132075472

= 1.56132075472 × 10²

By rounding it to the nearest 6 decimal places

We get,

157.225 ÷ 1.007 ≈ 1.561321 × 10²,

Similarly, by rounding to 5, 4, 3, 2 and 1 decimal places,

Solutions are,

1.56132 × 10², 1.5613 × 10², 1.561 × 10², 1.56 × 10² and 1.6 × 10² respectively.

Hence, OPTIONS 1, 2, 3, 5 and 7 are correct.