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18.12.2019 •
Mathematics
Bob makes a scale drawing of a statue using the scale 1 cm : 5 ft. his drawing measures 12 cm. kia makes a scale drawing of the same statue using the scale 1 cm : 4 ft. how many centimeters tall is the statue in kia's drawing?
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Ответ:
Kia's drawing is 15 cm tall
Step-by-step explanation:
Let's first investigate what the actual size of the statue is based on the information we have from Bob's drawing:
12 cm is the height in his drawing, and since he used a scale 1 cm : 5 ft, this means that his 12 cm are representing a statue which is 12 * 5 ft tall:
statues height =![12 cm * \frac{5\,ft}{1\,cm} = 12*5\,ft = 60\,ft](/tpl/images/0423/9470/add06.png)
Now that we know the size of the actual statue, we can find the size of Kia's drawing, who uses a scale 1 cm : 4 ft.
Kia's drawing =![60\,ft\,*\,\frac{1\,cm}{4 \,ft} = \frac{60}{4} \,cm=15\,cm](/tpl/images/0423/9470/1bea2.png)
Ответ:
On Graph B, at 0 minutes, the height of the graph will be at 12 miles
Then, the graph will decrease until 15 minutes, when Adalyn reaches the school. At 15 minutes, the height of Graph B will be at 0 miles.
Step-by-step explanation:
Since she is coming back from school the numbers are decreasing.