Figure is a street map. How many ways are there to move from the top – left corner to the bottom-right corner, if one ca...

PG

Phong Gió

17 tháng 2 2020

An ant is clinging to one corner of a box in the shape of a cube. The ant wants to get to the most distant corner of the box by crawling only along the edges of the cube and without ever revisiting a place it has been. How many different paths can the ant take to the most distant corner?

#Toán lớp 8

0

LQ

Lưu Quốc Việt

1 tháng 1 2020

A certain number of fifty-cent coins is to from an equilateral triangle. The same number of fifty-cent coins can also be used to from a square. The number of fiftty-cent coins on each side of the square is 6 fewer than the number of fifty-cent coins on each side of the equilateral traingle. How many fifty-cent coins are there altogether?

#Toán lớp 8

0

DQ

Đặng Quốc Thắng

17 tháng 7 2016

Three children want to take a group photo sitting in a row. In how many ways can they arrange their sitting positions?
Answer: There are ...... ways.

#Toán lớp 8

1

VD

Viên đạn bạc

17 tháng 7 2016

There are sixx way

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LH

La Ho Thi Minh Khue

3 tháng 2 2017

Question 1:In a magic triangle, each of the six whole numbers 10; 11; 12; 13; 14; 15 is placed in one of the circles so that the sum, S, of the three numbers on each side of the triangle is the same. The largest possible value for S is____

Q2:Find the highest common factor of 147x and 98y if HCF(x;y)=1

Q3: A pattern of triangles is made from matches shown as follows

if there are 207 matches used, how many triangles has been formed

#Toán lớp 8

1

HV

Hồ Việt Bảo Long

3 tháng 2 2017

Q1 có ai dịch đề dùm k ạ

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AA

Ai Ai

23 tháng 7 2020

There're four black box and each box has the same number of marbles. Only one of the following statements is correct about the number of marbles in it.

- Five or Six

- Seven or Eight

- Six or Seven

- Seven or Five

How many marbles are there in each box?

#Toán lớp 8

3

MN

Minh Nguyệt

23 tháng 7 2020

À là 8 đó bạn, mk bị lag tí......

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MN

Minh Nguyệt

23 tháng 7 2020

à nhầm có 2 nha

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NH

Nguyễn Hồng Mến

9 tháng 4 2015

Debbie keeps her marble collection in a jar. Of the 50 marbles in the jar, 15 are red, 10 are blue, 20 are green and 5 are yellow. Debbie chooses randomly 30 marbles from the jar. How many of these marbles can she expect to be red?
Answer: marbles

#Toán lớp 8

5

H

hhhhhh

9 tháng 4 2015

hfgesJdfahIJiufgidjrhibjfzytr

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NV

Nguyễn Văn Minh

9 tháng 4 2015

mày hỏi tiếng anh chó trả lời !!!!!!!!!!!

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PG

Phong Gió

15 tháng 2 2020

Rotate an equilateral triangle inscribed in a circle 40 degrees clockwise and counterclockwise, as shown in the figure below. How many triangles are there in the figure?