ASSIGNMENTS
COURSES
Assignment - 8. Rates
Attempt 1 of 3
Express the following relationship as a rate.
Answering 36 questions in 3 minutes
18 questions per minute
12 questions per minute
15 questions per minute
36 questions per minute

so, converting firstly the mixed fractions to improper fractions and then "adding".

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour

yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

hope this , have a good day. c;