giúp tớ với nhă, cảm ơn nhiều
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`861000 cm^3=0,861 m^3`
`6,5 dm^3=6500 cm^3`
`40 m^3= 40000dm^3`
`2/3 dm^3=400 cm^3`
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I
1 play
2 get
3 are learning
4 are going to
II
1 book => books
2 on => in
3 have => to have
4 going => go
III
1 - B
2 - C
3 - D
4 - A
IV
1 What a beautiful girl!
2 How far is it from Viet Tri to Ha Noi?
4 We often skip rope at recess
5 How much does this book cost?
V
1 Yes, they do
2 They play football, badminton and table tennis
3 Yes, they do
4 They feel happy
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3.1:
Ô tô đi hết 1h50'+40'=2h30'
3.2:
Ô tô đi hết:
17h50'-15h15'
=2h35'
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Gọi số ly trà sữa là x
=>Số ly trà đào là 210-x
Theo đề, ta có: 27000x=2*18000(210-x)
=>27000x-36000(210-x)=0
=>27000x-7560000+36000x=0
=>x=120
=>Số ly trà đào là 90 ly
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Câu 2:
uses crt;
var a:array[1..100]of integer;
i,n,t:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
t:=0;
for i:=1 to n do
if (4<a[i]) and (a[i]<15) then t:=t+a[i];
writeln(t);
readln;
end.