Answer:
30 years old
Step-by-step explanation:
5x = x + 2(12)
5x = x + 24
4x = 24
x = 6
5(x)
5(6) = 30
Answer:
A: x = 1/36
B: x = 1
Step-by-step explanation:
Part A:
(6²)x = 1
6² = 36, so we write 36 instead of 6² and get:
36x = 1
Now we divide both sides by 36 to find the value of x.
x = 1/36
Part B:
(6ˆ0)x = 1
6^0 = 1, so we replace 6^0 with 1 in the equation and get:
1x = 1
1x is the same as x, so our solution is:
x = 1
Answer:
(5,1) is not a solution of the above system of equations.
Step-by-step explanation:
We are given a system of equations that are
- 5y = - 5 ......... (1) and
7x + 6y = 7 ........... (2)
So, solving equation (1) we get y = 1 and putting y = 1 in the equation (2) we get 7x = 7 - 6(1) = 1
⇒
So, it clear from the solution of the above equations i.e. (
), we can say that (5,1) is not a solution of the above system of equations. (Answer)
Step-by-step explanation:
3√(x - 4) + 7 = -14
3√(x - 4) = -21 (subtract 7 from both sides)
√(x - 4) = -7 (divide 3 on both sides)
However √y is non-negative for all values of y in the domain of √y.
Hence there is no real solution for x.