Confusing I tried 4x-7+31=4x+2 But it won’t work Can someone explain??
1 answer:
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a_{10} = \frac{177147}{65536} is solution of arithmetic progression (AP).
What is arithmetic progression (AP) in math?
- The difference between any two consecutive numbers in an arithmetic progression (AP) is always a fixed amount.
- The AP cost per invoice is calculated by dividing the total number of invoices paid over a certain time period by all the expenditures incurred to pay those invoices over that same time period.
- An accurate assessment of a company's AP efficiency can be made using this metric in conjunction with other accounts payable measures.
Write the general term through the pattern
Substitute and calculate
Learn more about arithmetic progression (AP)
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Answer:
Step-by-step explanation:
If J can paint a room in 3 hours, in 1 hour she gets of the job done.
If A can paint a room in 4 hours, in 1 hour she gets of the job done. We need to find out how long it takes them if they paint together. The equation for this is:
where x is the number of hours it takes them to get the job done together. Multiply everything through by 12x to get
4x + 3x = 12 so
7x = 12 and
x = 1.7 hours to get the room painted together.