Q:

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

Accepted Solution

A:
Answer:The correct options are,1.561321 × 10²,1.56 × 10²,1.56132 × 10²,1.5613 × 10²,1.561 × 10²Step-by-step explanation:Given expression,(151.1 + 2.45 + 3.675) ÷ (0.660 + 0.3470),= 157.225 ÷ 1.007= 156.132075472= 1.56132075472 × 10²By rounding it to the nearest 6 decimal placesWe 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.