9 The table shows that Marta's heart beats 18 times every 15 s. Use equivalent
ratios to complete the table. Explain how you found the time in seconds for
180 heartbeats.
Marta's Heartbeats
Time (s)
15
30
45
böğ
Number of Beats
18
180
Louny
Unsup diod bivib m
Bandbyrinisixa
50
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