75%
30/40 means its 75% out of 100%
75$ representing the 30 and the 100$ representing the 40
Step-by-step explanation:
the answer is in the picture
Answer:
1: 
×
2: 
Step-by-step explanation:
1:
Multiply the numbers: 
Write it without exponents:
so 
.
2:
Apply exponent rule : 
assuming 
Multiply the numbers: 
Hope I helped! If so, may I get Brainliest and a Thanks?
Thank you, have a good one! =)
Answer:
72 parts
Steps:
Convert the 4 hours into minutes. There are 60 minutes in an hour. Therefore, 4 hours = 240 minutes.
Divide 240 minutes by 40 minutes. This equals 6. Therefore, the machinist can produce the 12 parts 6 times in 4 hours.
Finally, multiply the 12 parts by the 6 times he can produce. Therefore, the machinist can produce 72 parts in 4 hours.
