If 5 x a - b - c = 36 and b = c = a/2, what is the value of a?
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Given that A, B , C represent three distinct digits. If 7A90901 is larger than 79B9001, which is in turn larger than 798900C, what is the value of A x B x C?
The average of A ,B and C is 70 . The value of A is 2 more than B . The value of B is in more than C. Find value A , B and C
if a-b=1,b-c=2 what is value of a^2+b^2+c^2-ab-bc-ca
Because: \(\hept{\begin{cases}a-b=1\\b-c=2\end{cases}}\Rightarrow\left(a-b\right)+\left(b-c\right)=1+2\)
That means: \(a-c=1+2=3\).
We have: \(a^2+b^2+c^2-ab-bc-ca=\frac{1}{2}\left[\left(a-b\right)^2+\left(b-c\right)^2+\left(c-a\right)^2\right]\)
\(=\frac{1}{2}\left[1+2^2+3^2\right]=7\)
So...
P/s: Is that true?
thanks ban nhiu
if the line through the point (5;-3) and (-2;p) is parallel to the line y= -2x-3, what is the value of p?
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Câu 1 :Each of cars can take 8 people. How many cars needed to take 124 people?
Câu 2 : How many integer numbers between 200 and 300 are there for which the hundreds digit equals the sum of the other two digits?
Câu 3 : The average of five numbers is 20. The average of the five number is 18 when one of the numbers is chaned to 4. What is the orginal value of the changed number?
Câu 4 :A book has 250 pages starting at number 1. How many digits are there in the page numbers of the book?
Câu 5...
Đọc tiếp
Câu 1 :Each of cars can take 8 people. How many cars needed to take 124 people?
Câu 2 : How many integer numbers between 200 and 300 are there for which the hundreds digit equals the sum of the other two digits?
Câu 3 : The average of five numbers is 20. The average of the five number is 18 when one of the numbers is chaned to 4. What is the orginal value of the changed number?
Câu 4 :A book has 250 pages starting at number 1. How many digits are there in the page numbers of the book?
Câu 5 : Find A, if A is 3 less than the average of 48; 55; 29 and A. The value of A is…
Câu 6 : The sum of denominator and numerator of a fraction is 121 and the fraction is equal to 4/7. Find the denominator of the fraction?
Câu 7 : The sum of two numbers is equal to 77. If the first number is multiplied by 8 and the second by 6, the two product are equal. The larger of these numbers is…
Câu 8 : Which is the greatest 2 - digit number divisible by 2, 3 and 4?
Câu 9 : Calculate: (1 + 2/5) x 6/7.
Câu 10 : Give the number sequence: 1, 4, 7, 10, 13, … Find the 15th term of the number sequence.
câu 1:16 ; câu 2 : ai mà biết được
If 2a+b = 8, a>b and (a-b)^2 =1 then what is tha value of 2ab
The sum of two numbers is 124 and their difference is 36. What is the value of the larger number?
Dịch:Tổng của hai số là 124 và hiệu của chúng là 36. Tìm số lớn.
Số lớn là:
(124 + 36) : 2 = 80
Đ/S:80
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The sides of a triangle are a, b and c respectively. What is the perimeter of the triangle if a = 5cm, b = 4cm, and c = 3cm? Answer: The perimeter of the triangle is cm.
Giup mik với
Ex 1:A one-way bus ticket cost 25 dollars. A two- way bus ticket cost 35 dollars. A cashier collected 560 dollars altogether from the sale of 20 tickets. How many one- way bus tickets were sold?
Ex2: the sum of a,b and c is 14. If 9a+8b+6c=101, what is the value of 2a+b=c?
THANKS
bản dịch đây
Ex1: Một vé xe buýt một chiều có giá 25 USD. Một vé xe buýt hai chiều có giá 35 đô la. Một thủ quỹ thu được 560 USD hoàn toàn từ việc bán 20 vé. Làm thế nào nhiều one- cách xe buýt vé đã được bán?
Ex2: tổng của a, b và c là 14. Nếu 9a + 8b + 6c = 101, giá trị của 2a + b = c là gì?
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