John is 1.7 meters tall and Ken is 1.5 meters tall. What is the difference in their heights, expressed in centimeters? 0.2 cm 2
2 answers:
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Look at my upload to see the graph, I couldn't see the choices, so I can't give you a definite answer. But the graph below is the correct one.
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Answer:
40
Step-by-step explanation:
The number of girls is represented by 3 parts of the ratio.
Divide number of girls by 3 to find value of one part of ratio.
= 5 ← value of 1 part of ratio, thus
5 parts = 5 × 5 = 25 ← number of boys
Total members = 15 + 25 = 40