Mathematics: Find the sum 49+50+51+52+...+141+142

Find the sum 49+50+51+52+...+141+142 - id495051521411427453680, desiree6005

Ответ:

cutboymon

01.02.2022

Mathematics

8977

Step-by-step explanation:

Hello,

$49+50+51+52+...+141+142\\\\=(48+1)+(48+2)+(48+3)+(48+4)+...+(48+93)+(48+94)\\\\=48\times 94+(1+2+3+4+...+93+94)\\\\=48\times 94 + \dfrac{94\times 95}{2}\\\\=47(48\times 2+95)=47\times 191=8977$

thanks

0,0(0 оценок)

Ответ:

bettymj3071

17.09.2022

Mathematics

oopk4 db .afbkjbfljnbfhbfhb

Explanation:

0,0(0 оценок)

Find the sum 49+50+51+52+...+141+142

Ответ:

Ответ:

Ask your question to the AI advisor

More tips

Answers on questions: Mathematics

Ask an AI advisor a question