The answer is $6.72. First you do 8 × .2 and get 1.6 . Next you do 8.00-1.6 and get 6.4. Then you do 6.4 × 0.05 an get 0.32. 0.32 plus 6.4 is 6.72
-JZ
Answer is t_<10
-3t+9_>-21
-3t_>-30
t_<10
**when you divide or multiply both sides by a negative you have to flip the sign**
you can substitute numbers to make sure your answer is correct. For example if u substitute t=9 -27+9_>-21 -18_>-21 which is correct.(but you’ll see it’ll be incorrect if u put t=11)
X^2 + y^2 = 5
y = 2x
The second equation is solved for y, so substitute it in the first equation.
x^2 + (2x)^2 = 5
x^2 + 4x^2 = 5
5x^2 = 5
x^2 = 1
x^2 - 1 = 0
(x + 1)(x - 1) = 0
x = -1 or x = 1
Now substitute both values of x in the second equation and solve for y.
y = 2x
For x = -1
y = 2(-1)
y = -2
For x = 1
y = 2(1)
y = 2
Solution: (-1, -2), (1, 2)
Answer:
x=2
Step-by-step explanation:
Given equation is ![\[7x-14=0\]](https://tex.z-dn.net/?f=%5C%5B7x-14%3D0%5C%5D)
In order to solve this equation we need to move the constant value to the right hand side of the equation.
![\[7x=14\]](https://tex.z-dn.net/?f=%5C%5B7x%3D14%5C%5D)
Now to get the value of x we need to divide both sides of the equation by 7.
![\[\frac{7x}{7}=\frac{14}{7}\]](https://tex.z-dn.net/?f=%5C%5B%5Cfrac%7B7x%7D%7B7%7D%3D%5Cfrac%7B14%7D%7B7%7D%5C%5D)
Simplifying,
![\[=>x=2\]](https://tex.z-dn.net/?f=%5C%5B%3D%3Ex%3D2%5C%5D)
So the solution of the given equation is represented by x=2.
+ 
or x = -