Answer:
31
Step-by-step explanation:
Add those two angles together to get 180 degrees and then do some algebra
Answer:
95
Step-by-step explanation:
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Answer:
X = 6
Step-by-step explanation:
Add 14 to both sides: 18 = 3a
Divide both sides by 3: a = 6
Answer:
Step-by-step explanation:
This is an arithmetic series with first term 7 and common difference 9, so the general formula for the nth term of the sequence is .
The sequence has 7 terms, so the sigma notation is:
As before 180 =30×6 therefore 6 customers a day