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The ruins of a pyramid has 49 blocks in the bottom row. Each additional row has two less blocks than the first. If there are 15 rows in total:

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MrRoyal

There are 18 blocks in the first row

The missing part of the question

Calculate the number of blocks on the first row

How to determine the number of blocks?

The ruin is given as:

Ruin = 49

The common difference is given as:

d = -2

The number of block on each row is then represented as:

Blocks = 48 - 2n

Where n represents the number of rows.

In this case, the first row would have a value of n = 15

So, we have:

Blocks = 48 - 2 * 15

Evaluate

Blocks = 18

Hence, there are 18 blocks in the first row

Read more about sequence at:

https://brainly.com/question/6561461

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