ab3 - ab = 93
ab x 10 + 3 - ab = 93
ab x (10 - 1) =93 - 3
ab x 9 = 90
ab = 90 : 9
ab = 10
the original number is 103
ab3 - ab = 93
ab x 10 + 3 - ab = 93
ab x (10 - 1) =93 - 3
ab x 9 = 90
ab = 90 : 9
ab = 10
the original number is 103
If we put the digit 1 at the beginning of a 5-digit number, we get a number that is one third as number gotten if we put the digit 1 at the end of this number us. Find this number.
Answer:This number is ....
Câu 9:
The average mass of a group of children is 47kg. If of the number of children are girls and their average mass is 39kg. Find the average mass of the boys.
Answer: The average mass of the boys is kg
Câu 10:
A 6-digit number begins with the digit 8. The number is divisible by 9 and all digits of the number are different. What is the possible smallest value of this number?
Answer:
A natural number will be increased by 9 times ifthe digit 0 is written between tens digit and units digit.The number is
if we put the digit 1 at the beginning of a 5-digit number , we get a number that is one third as number gotten if we put the digit1 at the end of this number as . find this number.
Ai giải cả tiếng việt lẫn tings anh thì mk t
Toán- Tiếng anh: Giải giúp mình bài này:
find a decimal number number if is decreased by 2,7 the result is increased by 3,5 then the last result is 7,5 ( Write decimal number with the comma between number part and fraction part)
A 6 digit number begins with the digit 8.The number with divisible by 9 and all digits of the number are different.What is the possible smallest value of this number?
a) find the next two term in the sequence: 1; 4; 9; 16; 25;....;.....;
Answer:
b) find the smallest two-digit number whose number is 7 times the sum of its digits?
Answer:
The sum of two number is 14,4 . If the first number is increased by 5 times and the second number is increased by 2 times then the new sum will equal 35,1. Find the first number.