Mathematics: The grades foundation donated $250 in the first month, and each month afterward their cumulative donation total increases by $100

The grades foundation donated $250 in the first

Ответ:

ayyyyyyyydubs

25.01.2022

Mathematics

750

Step-by-step explanation:

Gades Foundation

donation cumulative total

1st month 250 250

2nd month 100 350

3rd month 100 450

4th month 100 550

5th month 100 650

6th month 100 750

y = 250 + 100(n-1)

y = 250 + 100(6-1) = 250 + 500 = 750

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Ответ:

rorofhs2009

19.02.2020

Mathematics

$\bf \stackrel{\textit{Sam invested the first year}}{x} \qquad \qquad \stackrel{\textit{2nd year is \$2,000 less than \underline{x}}}{x-2000} \\\\\\ \stackrel{\textit{3rd year is \$1,000 more than \underline{x}}}{x+1000}\qquad \qquad \boxed{\stackrel{\textit{Sam total investment}}{(x)+(x-2000)+(x+1000)}}\\\\ -------------------------------\\\\ \stackrel{\textit{Sally invested the first year \$1000 less than \underline{x}}}{x-1000}$

$\bf \stackrel{\textit{2nd year is \$1500 less than \underline{2x}}}{2x-15000}\qquad \qquad \stackrel{\textit{3rd year is \$1400 more than \underline{x}}}{x+1400} \\\\\\ \boxed{\stackrel{\textit{Sally total investment}}{(x-1000)+(2x-1500)+(x+1400)}}$

$\bf \stackrel{\textit{Sam total investment}}{(x)+(x-2000)+(x+1000)}=\stackrel{\textit{Sally total investment}}{(x-1000)+(2x-1500)+(x+1400)} \\\\\\ 3x-1000=4x-1100\implies 100=x\impliedby \textit{Sam invested the first year} \\\\\\ \stackrel{\textit{Sally invested last year}}{x+1400}\implies 10+1400\implies 1500$

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The grades foundation donated $250 in the first month, and each month afterward their cumulative donation total increases by $100

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