Volunteers put together 40 school-supply kits in 8 minutes. At this rate, how many could they put together in 30 minutes Solve this Problem using a unit rate.
A: 150 school-supply kits
B: 6 school-supply kits
C: 9,600 school-supply kits
D: 10.67 school-supply kits
To find the unit rate, we divide the number of school-supply kits by the number of minutes it takes to put them together.
Unit rate = 40 school-supply kits / 8 minutes = 5 school-supply kits per minute
To find how many kits they can put together in 30 minutes, we multiply the unit rate by the number of minutes.
Number of kits in 30 minutes = 5 school-supply kits/minute * 30 minutes = 150 school-supply kits
Therefore, the answer is A: 150 school-supply kits.
To solve this problem using a unit rate, we need to find the number of school-supply kits put together per minute. We can do this by dividing the total number of kits (40) by the total time (8 minutes):
Number of kits per minute = 40 kits / 8 minutes
Number of kits per minute = 5 kits/minute
Now, to find the number of kits that can be put together in 30 minutes, we multiply the number of kits per minute by the total time:
Number of kits = 5 kits/minute * 30 minutes
Number of kits = 150 kits
Therefore, the volunteers could put together 150 school-supply kits in 30 minutes.
The answer is A: 150 school-supply kits.
To find the number of school-supply kits that can be put together in 30 minutes using a unit rate, we first need to determine the rate at which volunteers put together the kits.
Given that 40 school-supply kits are put together in 8 minutes, we can establish a unit rate by dividing the number of kits by the number of minutes:
Unit rate = 40 kits / 8 minutes
Unit rate = 5 kits/minute
Now, to find out how many school-supply kits can be put together in 30 minutes, we multiply the unit rate (5 kits/minute) by the number of minutes (30 minutes):
Number of kits = Unit rate * Number of minutes
Number of kits = 5 kits/minute * 30 minutes
Number of kits = 150 kits
Therefore, the volunteers would be able to put together 150 school-supply kits in 30 minutes. Hence, the answer is option A: 150 school-supply kits.