The best way to solve these types of equations is to plug the solution in and see if it checks out.
1/2x+8=10
1/2*-3+8=10
-1.5+8=10
6.5 is not equal to 10
1/2(2*-3-6)=-6
1/2(-6-6)=-6
1/2*(-12)=-6
-6=-6
so d checks out
For the set B= { 3, 5, 7, ,9 , 12, 17, } determine n(B)
n is asking for the count of numbers in the set.
Set B has 6 numbers.
n(B) = 6
Solve for x over the real numbers:
6/x - 20 = 0
Bring 6/x - 20 together using the common denominator x:
-(2 (10 x - 3))/x = 0
Divide both sides by -2:
(10 x - 3)/x = 0
Multiply both sides by x:
10 x - 3 = 0
Add 3 to both sides:
10 x = 3
Divide both sides by 10:
Answer: x = 3/10
276 years
Hope that helped :)
Answer:
Equation : 35 + 6.40t < 86.20
t = less than 8 hours
Step-by-step explanation:
If t equals the number of hours they can rent the room before going over their set limit, we would add the base amount (35) to the hourly (6.40t) less than 86.20.
So :
35 + 6.40t < 86.20
6.40t < 51.20 (subtract 35 on both sides)
t < 8 (divide 6.40 on both sides)
:)