Tonight's HW help brought to you with help from Wyatt and the rest of 9th period Home-base.
#1. One of the issues with this question is the use of cm and km in the same problem. You need to make a ratio comparing the distance on the map to the actual distance (4cm : 56 km) then reduce. In the end you should change the units so they match
(1 km = 10000 cm)
#2. Use only one of the measurements (length or width). Again the units do not match but we know that 3 ft is 36 inches. So the scale factor is found by making a ration comparing the scale drawing size to the actual. (hint the answer online is incorrect)
#3. The length of the actual battery is 1.5 inches and the scale drawing is 2.5 inches. Make a ration using these numbers. You should know which one is the numerator
#4. The trick is they give you one diameter and one radius. The diameter of the actual volleyball is 24 cm. The diameter of the scale drawing is 12 cm. Make a ratio using these numbers.
#5a. Sketch (without a ruler) an envelope that is 3 times as big as the orginal. Use the techniques we used in class
#5b, this is a reduction it should shrink in size to make it easier use 3/4 as the scale factor. The picture is a tag. That is 4 inches wide making the scale drawing 3 inches wide.
#6 Draw a triangle (right) using the scale factor (which means to mulitply) so 6 inches times 1/4 is 1.5 inches.
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