Well I guess aliens invaded our earth because they were jealous that we could do proportions, so they came here so they can learn now to use proportions. Now that I have given them the answers to three questions I saved all your life's, Your welcome.
a. If 10 beans have a mass of 17g., then 30 beans have a mass of 51g.
b. These are 13 boys for 15 girls in every classroom at Albany Middle School. If these are 65 boys in the school, then there are 75 girls.
c. On a map, 1cm represents 25 km. Kendrea wants to ride her bike 160km. This distance is 6.4cm on the map.
A small gear turns 18 times in the same time that a large gear turns 4 times. How many times will the large gear turn if the small gear turns 54 time? Draw a diagram to help set up a proportion and solve the problem.
Last night 30 cm of snow fell in 6 h. If it continues snowing at the same rate, how long will it take for 45 cm of snow to fall? Determine the answer two different ways.