X = 1st number
Y = 2nd number
Facts given:
X = 2Y (One number is equal to 2 times the second number)
2X + 2Y = 20 (2 times the 1st number, plus 2 times the 2nd number is 20)
Now we can easily find X and Y.
We'll use a method called substitution to help us.
Our first equation: X = 2Y is already solved for X. (it equals 2Y's!)
So let's substitute x = 2y into the 2nd equation and find out what y is. Remember to use parenthesis!
2x + 2y = 20
2(2y) + 2y = 20
4y + 2y = 20
6y = 20
y = 20/6
y = 10/3
We found a number for Y, even though it is a fraction.
Let's substitute it back into our 1st equation to figure out what x is.
x = 2y
x = 2(10/3)
x = 20/3
In order to check and see if x = 20/3 and y = 10/3, substitute both x and y into either equation. You pick!
2x + 2y = 20
2(20/3) + 2(10/3) = 20
40/3 + 20/3 = 20
60/3 = 20
20 = 20 (check)
Let the two numbers be x and y, then:Twice the first equals three times the second: 2x = 3yThree times their difference exceeds the second by 13: 3(x - y) = y + 13From equation (1) it is clear the first number (x) is greater than the second (y), so their difference is x - y.Equation (2) can be rearranged:3(x - y) = y + 13→ 3x - 3y = y + 13→ 3x = 4y + 13This gives two simultaneous equations:2x - 3y = 03x - 4y = 13which can then be solved to find the two numbers (x and y).
Yes you can fly two flags on one pole all you have to do is make two knots each to the length of your flags and tie them to it or if you have clips on your pole clip the first flag to the top clip then clip your second flag to the bottom of the first one then place clip number 2 to the end of the 2nd flag then let it be chur
Triangular number: An integer of the form (1/2)n(n + 1), where n is a positive integer.12 is not a triangular number. The first few triangular numbers are 1, 3, 6, 10, and 15.
The first angle is 166 deg and the second is 14 deg.
Only a paternity test can really tell.
a ratio meaning the first number is twenty five times greater then the second
"First number squared equals the first number". This must be 1, but "they do not equal zero or one". No solution possible.
0
The first 2 is twenty The second 2 is two hundredths.
Twenty seven. "X" is equal to 10, "V" equal to 5 and "I" equal to 1. Roman numerals are written with the largest numbers first then second largest and so on and so forth, so the number "XXVII" is read: Ten, Ten, Five, One, One, which, when added equals 27.
The resulting number will fit into the first number a number of times equal to the second number.
if the first negative is samller than the second its positive but if the first one is a larger number than the second then its a positive
The number of columns in the first matrix must equal the number of rows in the second.
.29 The first number after the dot is the tenths position and the second after that is the hundredths position.
The ordinal number 21st is written out "twenty-first."twenty-first
89
The decimal that is equal to 20/25 is 0.80 or 0.8 (they are the same thing) because you first can convert the fraction to a number that is over a 1 followed by 0's and work from there, or simply divide in this case 20 by 25. The numerator (number on top) is divided by the denominator (number on the bottom)) to get the decimal it represents. :)