The square root of 198 is 14, so that is one side of that square. Divide by 2 to get 7 mm. B
Answer:
169.41 mi
Step-by-step explanation:
Let the time required for the outbound trip be t1 and that for the inbound (return) trip be t2. Then t1 + t2 = 4 hr. We can eliminate one variable by solving this equation for it: t1 = 4h - t2.
Then the time spent on the outbound trip was t1 = d / (40 mph) and that on the inbound trip t2 = d / (45 mph). We want to find the total distance traveled, which will be 2d.
d d
t1 + t2 = 4 hr becomes ---------------- + --------------- = 4 hr
40 mph 45mph
We must solve for d. The LCD here is 40*45, or 1800; thus, this equation becomes
45d + 40d = 4(1800), or 85d = 7200. Thus, d = 84.7 miles.
Michael drives this same distance going and returning, so the total distance he drives is 2(84.7 miles) = 169.41 mi
Step-by-step explanation:
In a self-service area, cross-contamination can occur when there are bacteria in a kitchen that are transmitted to the food by direct contact. Typically in the culinary, a knife or cutting board is the most common kitchen devices that appear to be tainted by cross contamination. In reality, it's not only bacteria that are transported or relocated from one location to another, but may also be a virus or toxin of some kind or even a cleaning product, so whatever it is, it is considered a cause of cross-contamination if it eventually comes into contact with somebody's food.