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Three times one number minus a second is eight and the sum of the numbers is twelve?
Wiki User
∙ 11y ago
3x-y=8
x+y=12
3x(12-x)=8
3x-12+x=8
4x-12=8
4x=20
x=5
x+y=12
5+y=12
y=7
Wiki User
∙ 11y ago
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What is the mean of two five and twelve?
In order to find the mean of numbers, add up all of the numbers and thn divide it by the number of numbers there are. Adding two, five and twelve equals nineteen. Then divide three into nineteen, and this gives you a mean of 6.33.
How do you write twelve and three tenths as a decimal?
To write twelve and three tenths as a decimal, write the number twelve as a whole number to the left of the decimal place and three tenths as three to the right of the decimal place. It appears as 12.3
The sum of two numbers is 13 two times the first number minus three times the second number is 1 what are the two numbers?
x = 8, y = 5
The sum of three numbers is 26 The second number is twice the first and the third number is 6 more than the second Find the numbers?
Number one = x Number two = y Number three = z x + y + z = 26The second number is twice the first. y = 2x The third number is 6 more than the second. z = y + 6 z = 2x + 6 x + 2x + (2x + 6) = 26 5x = 20 x = 4 Number one = 4 Number two = 8 Number three = 14
How do you write 3112 million in numbers?
Three billion one hundred twelve million.
What is the Publishers Math Tutor Center Phone Number?
the sum of three numbers is 14.the first number minus three times the third number is the second number.the second number is six more than the first number.find the three numbers
If the sum of three numbers is -48 the first number is twelve more than the second number and the third number is 20 less than twice the second number find the three numbers?
A = B + 12, C = 2B - 20, A + B + C = -48 So: B + 12 + B + 2B - 20 = -48 ie 4B = -40 so B = -10, A = 2 and C = -40.
What is the mean of two five and twelve?
In order to find the mean of numbers, add up all of the numbers and thn divide it by the number of numbers there are. Adding two, five and twelve equals nineteen. Then divide three into nineteen, and this gives you a mean of 6.33.
What is twelve and three tenths in decimal numbers?
12.3
He average of a number is 34 the first number is three times the second numberwhat are the two numbers?
Simply divide 34 by 4 and you get 8.5, which is the second number and the first number must be three times 8.5, which is 25.5
What are three prime numbers that can be multiplied to equal twelve?
1,3,4
How do you write twelve thousand and sixty three in numbers?
12,063
Example and sulotion of number relation word problem?
the sum of three numbers is 64. the second number is 3 less than the first number, the third number is 11 less than twice the first. what are the three numbers?
How do you write twelve and three tenths as a decimal?
To write twelve and three tenths as a decimal, write the number twelve as a whole number to the left of the decimal place and three tenths as three to the right of the decimal place. It appears as 12.3
How do you spell 312.12?
The number 312.12 is "three hundred twelve and twelve hundredths." The US currency value $312.12 is "three hundred twelve dollars and twelve cents."
What number goes into twelve and fifteen?
Three
How do you obtain a median if there are three numbers?
First, you need to sort the list of numbers from smallest to greatest. Then, the middle (second) number is your median.
