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26 tháng 12 2016

the mass of a can is

4500 : 300 =15 (g)

13 tháng 10 2021

Each of 20 gift boxes get \(\dfrac{20}{15}=\dfrac{4}{3}\left(yards.of.ribbon\right)\)

30 tháng 6 2017

The oldest than the smallest age is:

25 - 17= 8 (years old)

Answer: 8 years old

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...
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:

5
30 tháng 9 2016

Question 2: Answer: 131208 (MATH)

Queston 3: Answer: 15 ; 13 ; 11 ; 9 ; 7 ; 5 ; 3 ; 1

Question 4: Answer: 1112

Question 7: Answer: 67 pennies

Queston 8: Answer: 9 feet = 108 inch

Question 9: Answer: 26 years old

(I think the question 5 ; 6 ; 10 is not enough)

6 tháng 11 2016

Lê Minh Anh câu 2 của  bạn đúng không vậy ?

6 tháng 12 2016

a) 768 : (x + 8) - 18 = 14

768 : (x + 8) = 14 + 18

768 : (x + 8) = 32

x + 8 = 768 : 32

x + 8 = 24

x = 24 - 8

x = 16

b) 135 - 3 . (x - 36) = 120

3 . (x - 36) = 135 - 120

3 . (x - 36) = 15

x - 36 = 15 : 3

x - 36 = 5

x = 5 + 36

x = 41

c) 32 chia hết cho x và 6 < x < 20

vì 32 chia hết cho x => x \(\in\)Ư(32)

Ư(32)= {1;2;4;8;16;32}

vì 6 < x < 20 => x \(\in\){8;16}

d) x chia hết cho 43 và x có 2 chữ số

vì x chia hết cho 43 => x \(\in\)B(43)

B(43) = {0;43;86;129;...}

vì x có 2 chữ số nên x \(\in\){43;86}

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...
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.

4
12 tháng 12 2016

Câu 1 : ... (Bạn ko cho cái diagram thì làm sao mình giải được)

Câu 2 : Answer : 13,1,20,8

Câu 3 : Answer : 20 minutes

Câu 4 : Answer : 960 dollars

Câu 5 : ... (Bạn ko cho mình thấy cái table)

Câu 6 : Answer : 67 dollars

Câu 7 : ... (bạn ko cho xem "the following expression")

Câu 8 : Answer : 6 cans

Câu 9 : Answer : 105

Câu 10 : Answer : 18432 pennies = 184.32 dollars

ê câu hỏi gì mình ko hiểu

13 tháng 9 2016

The average of 2 boys is : 131,6 x 2 = 263,2 cm

The average of 4 girls is : 128,3 x 4 = 513,2 cm

Have all of children are : 2 + 4 = 6 children

So an average height of 6 children's : ( 263,2 + 513,2 ) : 6 = 129,4 cm

( bấm đúng nha)

14 tháng 9 2016

đúng bao nhiêu phần trăm vậy bạn?