The area of a rectangle is 50m2. If it's length is increased by 10% and it's width is decreased by 20% then the area of new rectangle is ...............m2.
The area of a rectangle is 50m2. If it's length is increased by 10% and it's width is decreased by 20% then the area of new rectangle is ...............m2.
The area of a rectangle is 50m2. If it's length is increased by 10% and it's width is decreased by 20% then the area of new rectangle is 88m2
Trả lời :..............................................................
88 m2
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k nhé
The area of a rectangle is 50 m vuong . If it's length is increased by 10%and it's width is decreased by 20% then the area of new rectangle is ?
The area of a rectangle is 50m2.If it is length is increased by 10% and it is width is decreased by 20% then area of new rectangle is ..........m2
The area of a rectangle is 50m2. If it's length is increased by 10% and it's width is decreased by 20% then the area of new rectangle is ...............m2.
đề bài:diện tích của 1 hình chữ nhật là 50m2.nếu tăng chiều dài lên 10% vầ giảm chiều rộng 20% thì diện tích mới là
giả sử tổng của chiều dài và chiều rộng là 100%.
nếu tăng chiều dài 10% thì tổng mới là :100+10=110%
còn chiều rộng thì giảm 20% thì tổng là:100-20=80%
diện tích mới là :110x80=8800%
8800%=88m2
ok k nhé
The area of a rectangle is 50m2 . If it's length is increased by 10%and it's width is decreased by 20% then the area of new rectangle is ..........m2
the area of a rectangle is 70m2 . if its length is increased by 10% and its width is decreased by 20% then the area of the new rectangle is ....m2
the area of a rectangleof a rectangle is 50 m2 . If its length is increased by 10% and its width is decreased by 20% then the area of new rectangle is .....m2
The area of the rectangle is 70 m2 . If its length is increased by 10% and its width is decreased by 20% then the area of the new rectangle is ................. m2
Giúp mình giải bài này với
the area of the rectangle is x if the length of the rectangle is increased by 20% and the width of the rectangle is decreased by 10%, the area of the rectangle is increased by 20 m2 find x
the area of the rectangle aftter the length of the rectangle is increased by 20% is :
\(x.\left(100\%+20\%\right)=x.120\%\)
the area of the rectangle aftter the width of the rectangle is decreased by 10% is :
\(x.120\%.\left(100\%-10\%\right)=x.120\%.90\%=x.108\%\)
so the area of the rectangle is increased by 20 m2 equivalent \(x.8\%\)
\(\Rightarrow x=20:8\%=250\)m2
dịch ra tiếng việt được ko
diện tích hình chữ nhật là x nếu tăng chiều dài 20% và giảm chiều rộng 10% thì diện tích hình chữ nhật tăng thêm 20 m2 tìm x