1)20m+40m=240
60m=240
m=240: 60
m=4
ответ: m=4
2)800k: 200=800
800k=800*200
800k=160000
k=160000: 800
k=200
ответ: k=200
3)(8x+2x)*8: 2=160
10х*8: 2=160
10х*8=160*2
10х*8=320
10х=320: 8
10х=40
х=40: 10
х=4
ответ: х=4
4)10+30t=20t+100
не знаю
uses Crt;
const n=11;
type Mas = array [1..n] of real;
var A: Mas;
i: integer;
Sum, Sred: real;
begin
ClrScr;
Sum:=0;
for i:=1 to n do
begin
A[i]:= 100+random(1000)/27;
Sum:=Sum+A[i];
end;
Sred:=Sum/n;
WriteLn ('Old Massiv: ');
for i:=1 to n do
Write (A[i]:6:2,' ');
WriteLn; WriteLn;
WriteLn ('Sred = ', Sred:6:2);
WriteLn;
WriteLn ('New Massiv: ');
for i:=1 to n do
begin
if A[i]>Sred then A[i]:=A[i]+40;
Write (A[i]:6:2,' ');
end;
WriteLn;
ReadLn;
end.