Oliver has d dimes and q quarters. He has at least $4 worth of coins altogether. Write
2 answers:
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Answer:
The common difference of the given AP is d=5.
Step-by-step explanation:
Given the sequence
An Arithmetic sequence has a constant difference 'd' and is defined by
Computing the common difference of all the adjacent terms
As the difference between all the adjacent terms is the same and equal to
Therefore, the common difference of the given AP is d=5.
Ok, so this one requires you to set up an equation that makes sense....(mr. Smith + mr. Harry)/2= 489...that is the average money from the problem....ok so let’s add some variables now and make it look like math. 2x is mr smith from the first sentence. X is mr. Harry. This yields
(2x+x)/2=489.....use inverse operations to yield
2x+x=978
Combine like terms to get
3x=978
Then divide by 3
To give you x=326
What does x tell you?
X= harry = 326
2x = Smith = 652
To check add them together and divide by 2 to get the average....489
(2x+x)/2=489.....use inverse operations to yield
2x+x=978
Combine like terms to get
3x=978
Then divide by 3
To give you x=326
What does x tell you?
X= harry = 326
2x = Smith = 652
To check add them together and divide by 2 to get the average....489