# math

posted by .

2 rainstorms occurred in one week in a certain area. In the first storm, 15ml of rain fell per hour, and the second storm, 20ml of rain fell per hour.

rain lasted for a total of 40 hours, resulting in a total rainfall of 675ml. how long was each storm

first storm lasted how many hours?=
second storm lasted how many hours?=

## Similar Questions

1. ### MATH/SCIENCE HELP

1. In a measurement of precipitation (rainfall), a raingauge with an orifice (collector) area of 30.50 in2 collects 1.30 litres of water over a period of 26 minutes and 45 seconds.[10] Calculate: a. The depth (amount) of rain that …
2. ### math

In a measurement of precipitation (rainfall), a raingauge with an orifice (collector) area of 30.50 in2 collects 1.30 litres of water over a period of 26 minutes and 45 seconds.[10] Calculate: 1) The depth (amount) of rain that fell …
3. ### Physics

During a severe storm in Palm Beach, Fla., on January 2, 1999, 31 inches of rain fell in a period of nine hours. Assuming that the raindrops hit the ground with a speed of 14 m/s, estimate the average upward force exerted by one square …
4. ### math urgent

2 rainstorms occurred in one week in a certain area in the first storm, 15ml of rain fell per hour, and in the second storm, 20ml of rain fell per hour. rain lasted for a total of 40 hours, resulting in a total rain of 675ml. how long …
5. ### Maths

Hey! Okay so when the weather reporters say that ?
6. ### physical science

During a rain storm, rain comes straight down with a velocity -15 m/s and hits the roof of a car perpendicularly. The mass of the rain per second that strikes the roof is .060 kg every second. Assuming that the rain cones to rest upon …
7. ### Math

On Tuesday 1.2 inches of rain fell. Two more inches of rain fell the next day. How many inches of rain fell on Wednesday?
8. ### scince

During a rain storm, rain comes straight down with velocity Vi =-15 m/s and hits the roof of a car perpendicularly. The mass of the rain per second that strikes the roof is 0.060 kg every second. Assuming that the rain comes to rest …
9. ### linear modeling

If rain is falling at a rate of ΒΌ inch per hour, how many inches of rain would you expect after 6 hours?
10. ### math

One wet weekend, 0.86 inches of rain fell on Saturday. The next day, 1.52 inches of rain fell. How many inches of rain fell over the weekend?

More Similar Questions