0
Add your answer:
Earn +20 pts
How do you work out X x X - 16X plus 15 equals 0?
X2 - 16X + 15 = 0 (X - 1)(X - 15) = 0 So X -1 = 0 or X - 15 = 0 ie X = 1 or X = 15
If you have 2.35 in dimes and nickels and you have one more dime than nickels how many of each do you have?
Set up your equations based upon the following: Let N = number of nickles. Let N + 1 = number of dimes. Let 5N = the value (in cents) of all the nickles. Let 10(N + 1) = the value (in cents) of all the dimes. Let 235 = the total value (in cents) of all the coins (nickles and dimes). In English, the value of the dimes plus the value of the nickles equals the total value of the coins. Algebraically, we write: 5N + 10(N + 1) = 235 The distributive law of multiplication lets us rewrite that this way: 5N + 10N + 10 = 235 Grouping lets us write that this way: 15N + 10 = 235 Subtracting 10 from both sides of the equation yields: 15N = 225 Dividing both sides by 15 yields: N = 15 So, we have 15 nickles and 15 + 1, or 16, dimes.
-2x plus 3y equals -7 3x plus y equals 16?
(5, 1)
4x plus 6y equals 14 -2x plus 2y equals -2?
(2, 1)
What does 1x plus 1 plus x equals 1 equal?
x = 0
Solve this problem 9 minus 5n plus 1 equals 15?
9-5n+1 = 15 -5n = 15-9-1 -5n = 5 Divide both sides of the equation by -5 to find the value of n: n = -5
How do you solve 1 minus 7n equals 15 minus 5n?
1 - 7n = 15 - 5n Add 5n to each side: 1 - 7n + 5n = 15 -5n + 5n ie 1 - 2n = 15; subtract 1 from each side: -2n = 14 divide both sides by -2: n = -7
What is 5n plus 1 equals 10 plus 2n?
5n + 1 = 10 + 2n5n - 2n + 1 - 1 = 10 - 1 + 2n - 2n3n = 93n/3 = 9/3n = 3
2n plus 3 equals 5n-2?
n=1 2/3
5n plus 3 equals 14-6n what is n?
5n + 3 = 14 - 6n <=> 5n +6n = 14 - 3 <=> 11n = 11 => n = 11/11 = 1
What does n plus 4n-3 equals?
1
1 over 5n plus 4 over 5n minus 1 over 5n?
4 over 5n
How do you factorise 2nxn plus 5n plus 3?
(2n+3)(n+1)=2n2+5n+3.
What is -6n plus 2 - 5n equals -9?
-6n + 2 - 5n = -9Combine like terms:-11n + 2 = -9Subtract 2 from each side:-11n = -11Divide both sides by -1:n = 1
What is the 10th term of 5n plus 1?
Tenth term of 5n + 1 = 5*10 + 1 = 51
What is 4 equals 5n plus 6n2?
4 = -5n + 6n2 if you want to solve for n: 6n2 - 5n - 4 = 0 (3n - 4)(2n + 1) = 0 3n - 4 = 0, n = 4/3 2n + 1 = 0, n = -1/2 n = {-1/2, 4/3}
What is -15 plus 1 equals?
-14
