tạm dịch:
1 sợi dây dài 2.1 m được cắt thành 6 phần.hỏi độ dài của mỗi phần trong cm là bao nhiêu?
Giải:
đổi 2.1=210cm
đội dài của mỗi phần là:
210:6=35 cm
đáp số:35cm
A piece of steel wire of length 70m56cm is cut into nails of length 3 \(\frac{1}{2}\)cm. How many nails can be produced from the wire?
\(\frac{bai}{nay}\)\(hoi\frac{hoc}{bua}\) cac ban nghi ki khi lam mk k cho
Anna has two sheets of clothes. One sheet is 372cm wide and the other sheet is 310 cm wide. She wants to divide the sheets into the strips of equal width that are as wide as possible without wasting any cloth. How wide should she cut the strips?
In semester I, the number of good students in class 6D was equal to 2/7 of the remaining students. Into semester II, the number of good students increased by 8 students ( the number of students of the class was unchanged), so the number of good students became 2/3 of the rest. How many good students of class 6D were there in semester I ?
Ai làm nhanh mà đúng, mình tích cho !
9 cardboard with numbers and divided into three groups .Let move a cover from a certain group to group such that the sum of the numbers in each group are equal.
you help me with
Get a piece of paper cut into 4 pieces. Get a piece that you have just cut cut into 4 pieces. So on many times.
a) When to stop cutting follow the rule above, can we be obtained 2012 pieces of it?
b) How many times do we cut to obtain 52 pieces of paper?
The lengths in cm of three sides of a triangle are three consecutive odd numbers.
Knowing that the perimeter of the triangle is 40.5 dm, find the length of the longest side of the
triangle.
A.137cm
B.135cm
C.143cm
D.145cm
Today Dich Vong A Primary School organized country fairs. Three Vietnamese friend, Yen Dung and parents for pocket money. The amount initially of three different you are and the total amount of all three is 48,000 dong. Vietnam Yen amount equal to the amount of existing nest, then back to Yen Dung amount equal to the amount of Dung are, then finally left Vietnam Dung amount equal to the amount of Vietnamese who had the time this three you have equal amount.
Ask each of your first time how much money?
the table square table top has an area of 149 square cm. The length of a side of the table top will be between which two numbers of cm ?
A nurse poured 1,5L of cough mixture equally into 6 bottles. How many ml of cough mixture were there in each bottle?
