Peter draws a hotdog on graph paper using the scale shown below. The hotdog has a length of 9 units in the drawing. What is the length in cm, of the actual hot dog?
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Answer: 15
Step-by-step explanation: Since 10cm is scaled to 6 units you can use the ratio 10:6. Then since the hotdog is 9 units you will divide both sides of the ratio so it will still be equivalent so your new ratio would be 5:3, now the ratio can go into 9. So to get 9 you will multiply the 3, 3 times and do the same with the 5, so the final ratio would be 15:9. 15cm is the length of the hotdog.
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