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Good morning ! Welcome to the weather forecast. Let's take a look at the weather today and tomorrow. Today, it's cool and sunny in Ha Noi. What will the weather be tomorrow ? Well, it will be hot and sunny. This is the weather forecast of today and tomorrow. The program is coming to an end. Please watch the show tomorrow. Have a nice day. Good bye !
Good morning ! We will come to weather forecasts today and tomorrow .Today in Hanoi it's cool and sunny. What will tomorrow be? Watch ! Tomorrow in Hanoi it's hot and sunny .This is the weather forecast today and tomorrow . The weather forecast program here comes to end . Please watch the show tomorrow. Have a nice day ! Goodbye .
Bài 1:
a) x + x : 2 = 1/2
x . (1+1/2) = 1/2
x . (2/2+1/2) = 1/2
x . 3/2 = 1/2
x = 1/2 : 3/2
x = 1/2 . 2/3
x = 1/3
b) x : 5 + x = 0,36
x . (1/5 +1 ) = 9/25
x . (1/5+5/5) = 9/25
x . 6/5 = 9/25
x = 9/25 : 6/5
x = 9/25 . 5/6
x = 3/10
Bài 2. 1 phút = 1/60 giờ; 20m = 0,02km
Vân tốc ngày hôm nay của Nam là:
0.02 : 1/60 = 1,2 (km/h)
Vận tốc mọi hôm của Nam là:
1,2 : 2/3 = 1,8 (km/h)
vì moi ve đều có 4 nên ta lấy :
72 / 18 = 4
vậy x = 4
1125. tk cho mik nhé
= ( 34 x 34 ) - 45 + ( 56 : 4 )
= ( 1156 - 45 ) + 14
= 1111 + 14
= 1125