In a flower bed, there are 23 rose plants in the first row, 21 in the second, 19 in the third, and so on

There are 5 rose plants in the last row. How many rows are there in the flower bed ?

There are 5 ro

In a flower bed, there are 23 rose plants in the first row, 21 in the second, 19 in the third, and so on

There are 5 rose plants in the last row. How many rows are there in the flower bed ?

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Answer:There are 10 rows in the flower bed.

Step-by-step explanation:Flowers in first row, a = 23

Common Difference = 21-23=-2

Flowers in last row, an= 5

Number of rows,n=?

an= a+ (n-1)d

5 = 23+ (n-1)-2

-18= (n-1)-2

n-1 = 9

n= 10

the final answer is 140. continue from where i stop.