The height of the water in a tank decreases 3 inches each week due to evaporation. What is the change in the height of the water over a five-week period due to evaporation?
5 weeks * 3 in / week = 15 in
A football team loses 5 yards on one play and then loses 8 yards on the next play. Write an addition expression that represents the change in position of the team for the two plays. Then find the sum.
You park in a garage 3 floors below ground level. Then you get in the elevator and go up 12 floors. Write an addition expression to represent this situation. Then find the sum.
To find the change in the height of the water over a five-week period due to evaporation, we need to multiply the rate of decrease per week by the number of weeks.
In this case, the height decreases by 3 inches each week. Therefore, the rate of decrease per week is 3 inches. And since we want to find the change over a five-week period, we multiply the rate by the number of weeks:
Change in height = Rate of decrease per week * Number of weeks
Change in height = 3 inches/week * 5 weeks
Change in height = 15 inches
So, the change in the height of the water over a five-week period due to evaporation is 15 inches.