Question

A water desalination plant can produce ×2 x 10^6 gallons of water in one day. How many gallons can it produce in 6.7 days? Write your answer in scientific notation.

Answer 1

2 x 10⁶ gallons per day.

So if there was 6.7 days, it would produce 6.7 times the amount above.

So 6.7 × (2 × 10⁶) = 13.4 × 10⁶

We must rewrite in scientific notation, so:
13.4 x 10⁶ =
1.34 x 10⁷