2. Word Problem with Algebra – The amount of rainfall in a city is modeled by the equation R = 3t² + 2t + 5, where R is the rainfall in millimeters and t is the number of weeks. How much rain falls after 4 weeks?

3. Ratio of Rainfall to Evaporation

In a certain area, the ratio of rainfall to evaporation is 3:2. If 750 mm of rain falls in a month, how much water is lost to evaporation?

Precipitation and Evaporation:

A snow squall drops 16 out of 20 units of snow. The sun shines brightly, melting snow at a rate of 1/16 per minute for 10 minutes. How much snow melts, and how much is left?

Runoff and Precipitation: Rain falls for 28 minutes at a rate of 2/42 units per minute. A pool, currently 1/8 full, collects some of the rain. How much water runs off instead of staying in the pool?

Runoff, Power of numbers

Simply the following expressions and find for the runoff:

Rain fallen= 3*2 × 3*4

Bucket filled= 1/2 of 16ml.

Formula: Runoff= rain fallen- bucket filled

Precipitation

Last Wednesday, 0.76 units of rain fell and this Wednesday 0.49 fell. Find the difference between these two decimals and write it as a fraction.

If 3 litres of rain fell on Sunday and for the rest of the week it poured 3 times as much. How many litres of rain fell for the whole week?

If a lake has 4000 miles of water and the sun evaporated 3/4 how many miles of lake is left?

If 65% of humidity is needed for condensation to occur, and during Sunday to Friday, only 35% was made. Then calculate how much more humidity is needed for condensation to occur.