number 30 i don't know how to do **Problems:**27. An automobile oil filter holds 0.3 qt of oil. The automobile holds 4.5 qt of oil including the filter. What percent of the oil is in the filter?28. Air enters an air conditioner at the rate of 75 lb/h, and the unit can remove 1.5 lb/h of moisture. If the air entering contains 2 lb/h moisture, what percent of the moisture is removed?29. Air flows through a duct at 2400 cubic feet per minute (CFM). After several feet and a few vents, the airflow decreases to 1920 CFM. What is the percent drop that has occurred?30. A building being designed will have fixed windows. Including the frame, the windows are 2 ft wide and 6 ft high. The south wall is 78 ft 6 in. wide by 12 ft 2 in. high. Local codes allow only 20% window area on south walls. How many windows can you draw on this wall?31. The embankment leading to a bridge must have a maximum 3% slope. The change in elevation shown in Illustration 1 must be dimensioned to meet these criteria. Find dimension A to complete the drawing.**Diagram Explanation:**Illustration for problem 31 shows an embankment leading up to a bridge. The slope of the embankment is indicated to be 3%. It includes a horizontal measurement labeled as "20 ft", and a horizontal line pointing to the variable "A", which needs to be determined. The embankment surface is shown sloping upwards towards the bridge, suggesting a linear change in elevation that must be calculated.

Name: number 30 i don't know how to do **Problems:**27. An automobile oil fi
Uploaded: 2024-03-20T07:06:41.000Z
Channel: Bartleby
Description: number 30 i don't know how to do **Problems:**27. An automobile oil filter holds 0.3 qt of oil. The automobile holds 4.5 qt of oil including the filter. What percent of the oil is in the filter?28. Air enters an air conditioner at the rate of 75 lb/h