colbyestep12
contestada

Three students are preparing information packets about an upcoming fundraiser event.

• Lauren prepared 270 packets in 45 min.
• Hannah prepared 450 packets in 1.5 h.
• Jakob prepared 280 packets in 1 h and 10 min.

Who worked the fastest?


A. Lauren
B. Hannah
C. Jakob
D. they all worked the same rate

Respuesta :

apologiabiology
rate=amountdone/time

convert everybody to minutes
1 hour=60 minutes
45 mins=45 mins
1.5 hour=1.5 times 60=90mins
1hour and 10mins=60+10=70mins

laurenrate= 270packets/45mins=6ppm (packets per minute)
hannahrate=450packets/90mins=5ppm
jakobrate=280packets/70mins4ppm


whoever worked the fastest, has the highest ppm

lauren is winner


answer is A. lauren