Answer: miles over hour
Step-by-step explanation:
just cuz
3) For Zach, if his heart beats 15 times in 10 seconds, his heart beats 1.5 times in 1 second. Multiply this by 25 to get the number of times his heart will beat in 25 seconds → 1.5 * 25 = 27.5 times per 25 seconds. 1.5 * 60 = 90 times per minute. 1.5 * 120 = 180 times per two minutes. Do the same for your heart beats. 14 beats per 10 seconds is 1.4 beats per second. 1.4 * 25 = 35 times per 25 seconds. 1.4 * 60 = 84 times a minute. 1.4 * 120 = 168 times per two minutes.
4) Zach's equation would be H = 1.5n and yours would be H = 1.4n
5) Your heat beats just a little bit slower than Zachs. Everyone is different and there are many different things that can affect heart rate. Maybe he walked a little more than you did or maybe he was stressing about something which made his heart beat a little faster.
I hope this helps you!
720% because 1/5 is 20% and 7 is 700% so you add
There is 50 which is greater than 10 but no number is less than 15
C = 19.99 + 0.15x
1️⃣ C = 0.15(78) + 19.99
2️⃣ C = 11.7 + 19.99
3️⃣ C = 31.69
4️⃣ The total cost is $31.69
5️⃣ The cost to send 78 text messages is $11.70
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