Mathematics: Greg goes fishing every day for a week. On the first day he catches seven fish and each day he catches three more than the previous day. How many fish did he catch in total?

Greg goes fishing every day for a week. On the first

morganruhl2

30.01.2022

so first day and so on

7, 10, 13,

as you can see it's an arithmetic progression

so sum for nth term= n/2 { 2a + (n-1) d}

it's the sum of the 7th term

7/2 { 7 ×2 + ( 7-1) 3}

7/2 × 32

7× 16

112 fishes

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markyyy53

20.08.2020

sorry can't read, cuz too small the words.

Explanation:

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