Question

a=5 ,a11=45 then d=?

Answer 1

Step-by-step explanation:

The answer is 4

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Answer 2

stepwise explaination :-

• a11 = a +10d
• a+10d = 45

let d =☆

then..,

• 5 + 10☆=45
• 10☆=45-5
• 10☆=40
• ☆=40/10
• ☆=4
• that means d =4

answer

4