Answer:
3c
Step-by-step explanation:
Substitute a= b +2c:
Substitute b= 3c:
Thus, the average of the 3 numbers is 3c.
Each day valerie charges her lunch account for her lunch. If the cost of lunch is $3 then by how much has her lunch account been
1 answer:
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Answer:
x=(3,1/4)
Step-by-step explanation:
Be sure to use the formula...
- First, move all variables to one side (left) of the equation. You want one side to be equivalent to zero.
-Next, you need to find a, b, and c. This should be...
a=4
b=-13
c=3
- Knowing this, fill in these variable to go along with the formula. I cannot do this for you, as you should try it on your own. But, you should end up with the solution x= (3,1/4).
- Hope this helps! If you need a further explanation or help on any more problems please let me know, as I would be glad to help anytime.