Answer: 4 machines
Step-by-step explanation:
In the given situation, the number of machines is inversely proportional to the time taken by them.
Given : 9 machines can fill an order in 20 hours.
Let n be the number of machines required to fill the same order in 45 hours.
Then , we have the following inverse variation equation:-

Hence, the 4 machines would be needed to fill the same order in 45 hours.
Answer
1
_ ×(-63x-52)
2
Step-by-step explanation:
So there are 8 stacks of 5 nickels which means that the equation would be simply 8 * 5 which equals 40 nickels. Then, 7 stacks of 6 dies would equal 42. Then she found one more dime and one more nickel which means she has 41 nickels and 43 dimes. In all, she has 84 dimes and nickels.
Answer:
21 and 23
Step-by-step explanation: