Các câu hỏi tương tự
a fog has fallen into ditch which is 13m deep. each day the frog jumps 2m nd then fall bach by 1m. in how many days will the frog reach the top of the ditch?
Vivian plays ice hockey and gets to her training sessions by bike. For warm up, she skates the rink from one end to the other and back 5 times, while for cool down, she calmly skates the rink from one end to the other only 3 times. The hockey rink is 56.45 meters long. After her training session she jumps on her bike and heads off home, which is 6.8 kilometers away. Halfway down the road she notices that she left her keys at the arena and rides back to retrieve them.a) How many meters does Vivia...
Đọc tiếp
Vivian plays ice hockey and gets to her training sessions by bike. For warm up, she skates the rink from one end to the other and back 5 times, while for cool down, she calmly skates the rink from one end to the other only 3 times. The hockey rink is 56.45 meters long. After her training session she jumps on her bike and heads off home, which is 6.8 kilometers away. Halfway down the road she notices that she left her keys at the arena and rides back to retrieve them.
a) How many meters does Vivian skate for warm up?
b) How many meters does Vivian skate for cool down?
c) How many meters does she skate for warm up and cool down in total?
d) How many kilometers extra does Vivian have to ride due to leaving her keys behind?
e) Once back at home, how many kilometers did Vivian ride in total?
How many two-digit numbers N have the property that the sum of N and the number formed by reversing the digits of N is a perfect square ?The square SAMF has an area of 169. It contains two over lapping squares. The smaller of these sqares has an area that is one quarter of the larger of them, and the erea of their overlap is 4. What is the erea of the shaded region ?In the diagram, each of the integers 1 through 9 is to be placed in one circles, both horizontal and diagonal, add to 18. The 6 and...
Đọc tiếp
How many two-digit numbers N have the property that the sum of N and the number formed by reversing the digits of N is a perfect square ?The square SAMF has an area of 169. It contains two over lapping squares. The smaller of these sqares has an area that is one quarter of the larger of them, and the erea of their overlap is 4. What is the erea of the shaded region ?In the diagram, each of the integers 1 through 9 is to be placed in one circles, both horizontal and diagonal, add to 18. The 6 and 1 have been filled in as shown. Determine the value of the number represented by x in the diagram. Justify your answerHow many digits does the number 2013 have ?
Examining the operation of how to use the number of days to find the number of beans in a classroom jar is shown the table. On day 31, how many beans would be in the jar?
How many apples would you get from the 10th tree if a farmer notices a pattern from picking the apples on the 1st through the 10th tree. He picked 4 from the first tree, 7 from the second tree and 10 from the third tree.Examining the operation of how to use the number of days to find the number of beans in a classroom jar is shown the table. On day 31, how many beans would be in the jar?Use the table of values to help you find the value of 9 feet in inches.If your parents give you one penny on D...
Đọc tiếp
How many apples would you get from the 10th tree if a farmer notices a pattern from picking the apples on the 1st through the 10th tree. He picked 4 from the first tree, 7 from the second tree and 10 from the third tree.
Examining the operation of how to use the number of days to find the number of beans in a classroom jar is shown the table. On day 31, how many beans would be in the jar?
Use the table of values to help you find the value of 9 feet in inches.
If your parents give you one penny on Day 1, 2 pennies on Day 2, 4 pennies on Day 3, 8 pennies on Day 4. If the pattern continues, how many pennies will your parents give you on Day 15?
Answer: pennies.
âu 1:If Juan spent of his money on a game that costs 20 dollar, how much did Juan have originally to spend?Use the diagram below to reason the answer.Answer: dollar.Câu 2:Mathematician Sophie Germain worked with codes and mathematics. If each letter of the alphabet is assigned a number starting with A 1, B 2, etc., the values of the letters in the alphabet will start to look like this:If your code is sum of the letter values, what is the value of MATH ?Answer: Câu 3:It takes Abby twice as lo...
Đọc tiếp
âu 1:
If Juan spent of his money on a game that costs 20 dollar, how much did Juan have originally to spend?
Use the diagram below to reason the answer.
Answer: dollar.
Câu 2:
Mathematician Sophie Germain worked with codes and mathematics. If each letter of the alphabet is assigned a number starting with A = 1, B = 2, etc., the values of the letters in the alphabet will start to look like this:
If your code is sum of the letter values, what is the value of "MATH" ?
Answer:
Câu 3:
It takes Abby twice as long as Blair and half as long as Caitlin to ride her bike to school. If it takes Blair 10 minutes to ride her bike to school, how long does it take Caitlin to go to school?
Answer: minutes.
Câu 4:
If you make the 8000km trip, about how much would it cost at today's prices of 3.00 dollar per liter of gas when your car gets 25km per liter?
Answer: dollar.
Câu 5:
Examining the operation of how to use the number of days to find the number of beans in a classroom jar is shown the table. On day 31, how many beans would be in the jar?
Answer: beans.
Câu 6:
The 112 4-grade students at Edgemont School donate pennies to raise 75 dollar for a local charity. What is the minimum number of pennies each student needs to bring if they are to meet their goal of collecting 75 dollar?
(1 dollar = 100 pennies)
Answer: pennies.
Câu 7:
What is the value of the following expression: ?
Answer:
Câu 8:
Your school is having a canned food drive for Harvesters. How many total cans would you have if you made a solid pyramid with cans on the first level, on the second level and continue the pattern all the way up to just one can on top?
Answer: cans.
Câu 9:
What is the next number in the pattern: 1, 8, 27, ...?
Answer:
Câu 10:
If your parents give you one penny on Day 1, 2 pennies on Day 2, 4 pennies on Day 3, 8 pennies on Day 4. If the pattern continues, how many pennies will your parents give you on Day 15?
Answer: pennies.
Câu 2:Mathematician Sophie Germain worked with codes and mathematics. If each letter of the alphabet is assigned a number starting with A 1, B 2, etc., the values of the letters in the alphabet will start to look like this:If your code is sum of the letter values, what is the value of MATH ?Answer: Câu 3:What is the next number in the pattern: 25, 23, 21, 19, 17, ...?Answer: Câu 4:A farmer plants 450 seeds per row in his field. How many FULL ROWS would he be able to plant with 50000 seeds?Answ...
Đọc tiếp
Câu 2:
Mathematician Sophie Germain worked with codes and mathematics. If each letter of the alphabet is assigned a number starting with A = 1, B = 2, etc., the values of the letters in the alphabet will start to look like this:
If your code is sum of the letter values, what is the value of "MATH" ?
Answer:
Câu 3:
What is the next number in the pattern: 25, 23, 21, 19, 17, ...?
Answer:
Câu 4:
A farmer plants 450 seeds per row in his field. How many FULL ROWS would he be able to plant with 50000 seeds?
Answer:
Câu 5:
Your school is having a canned food drive for Harvesters. How many total cans would you have if you made a solid pyramid with cans on the first level, on the second level and continue the pattern all the way up to just one can on top?
Answer: cans.
Câu 6:
Examining the operation of how to use the number of days to find the number of beans in a classroom jar is shown the table. On day 31, how many beans would be in the jar?
Answer: beans.
Câu 7:
The 112 4-grade students at Edgemont School donate pennies to raise 75 dollar for a local charity. What is the minimum number of pennies each student needs to bring if they are to meet their goal of collecting 75 dollar?
(1 dollar = 100 pennies)
Answer: pennies.
Câu 8:
Use the table of values to help you find the value of 9 feet in inches.
Answer:
Câu 9:
Joel is three years younger than his brother Jaime. The sum of their ages is fifty-five. How old is Joel?
Answer: years old.
Câu 10:
Calculate:
Question 1:The smallest odd multiple of 9 is Question 2:K is a prime number and a multiple of 43. What is K?Answer: K Question 3:How many prime numbers are less than 10? Answer: There are numbers.Question 4:P is a prime number and a factor of 8. What is P?Answer: P Question 5:A prime number between 42 and 46 is Question 6:In the following numbers, which has the most factors?Answer: Question 7:The number 55 has factors.Question 8:Find the sum of all the factors of 15Answer: Question 9:How man...
Đọc tiếp
Question 1:
The smallest odd multiple of 9 is
Question 2:
K is a prime number and a multiple of 43. What is K?
Answer: K =
Question 3:
How many prime numbers are less than 10?
Answer: There are numbers.
Question 4:
P is a prime number and a factor of 8. What is P?
Answer: P =
Question 5:
A prime number between 42 and 46 is
Question 6:
In the following numbers, which has the most factors?
Answer:
Question 7:
The number 55 has factors.
Question 8:
Find the sum of all the factors of 15
Answer:
Question 9:
How many times does the digit “0” appear in numbers from 1 to 1000?
Answer:
Question 10:
If m, n are consecutive odd numbers and is divisible by 3 and 5 then m =
toan quoc te nhaQuestion 1:There are two parallel lines in the figure. What is the value of x? Answer: x Question 2:ABC and RTS are similar triangles.The value of x is Question 3:If x0 and 5x+8+|3x|0 then xQuestion 4:I am a multiple of 70 between 400 and 600. My tens digit is odd. Who am I?Answer: Question 5:How many triples of integers (a,b,c) are there such that ? Answer: triples.Question 6:Each of the 37 students in the grade 8 at a school has one dog or one cat or both a dog and a cat. T...
Đọc tiếp
toan quoc te nha
Question 1:
There are two parallel lines in the figure. What is the value of x?
Answer: x =
Question 2:
ABC and RTS are similar triangles.
The value of x is
Question 3:
If x<0 and 5x+8+|3x|=0 then x=
Question 4:
I am a multiple of 70 between 400 and 600. My tens digit is odd. Who am I?
Answer:
Question 5:
How many triples of integers (a,b,c) are there such that
?
Answer: triples.
Question 6:
Each of the 37 students in the grade 8 at a school has one dog or one cat or both a dog and a cat. Twenty students have a dog and 24 students have a cat.
How many students have both a dog and a cat?
Answer: students.
Question 7:
The sum of 2 positive integer numbers is greater than their product if the smaller number is
Question 8:
How many different real numbers satisfy the following equation?
Answer:
Question 9:
The area of trapezoid ABCD is 180 .The altitude is 8 cm,AD is 10 cm,and BC is 17 cm.
What is AB,in centimeters?
Answer: cm.
Question 10:
There are 115 cars in a village of 26 families. Each family has either 4 or 5 cars.
How many families have 4 cars?
Answer: families.