Question

a factory tested three machines that make widgets. the table below shows the number of

	machine a	machine b	machine c
time (hours)	5	7	4
number of widgets	15	49	20

write the number of widgets made per hour for each machine. then determine which machine
number of widgets made per hour by machine a:
number of widgets made per hour by machine b:
number of widgets made per hour by machine c:
select the machine that was the fastest.
machine a machine b machine c

Explanation:

Step1: Calculate for Machine A

Widgets per hour = Total widgets / Time. For Machine A, that's $15 \div 5$.
$15 \div 5 = 3$

Step2: Calculate for Machine B

For Machine B, it's $49 \div 7$.
$49 \div 7 = 7$

Step3: Calculate for Machine C

For Machine C, it's $20 \div 4$.
$20 \div 4 = 5$

Step4: Determine the fastest

Compare the rates: 3 (A), 7 (B), 5 (C). 7 is the highest, so Machine B is fastest.

Answer:

Number of widgets made per hour by Machine A: 3
Number of widgets made per hour by Machine B: 7
Number of widgets made per hour by Machine C: 5
Select the machine that was the fastest: Machine B