Answer:
4 months and 7 months
Step-by-step explanation:
C = 30x + 50
C is cost so when we spend $170 we can solve for x.
$170 = 30x + 50
170 - 50 = 30x + 50 - 50
170 - 50 = 30x
120 = 30x
120/30 = 30x/30
120/30 = x
4 = x
So he has played 4 months when he spends $170
C is cost so when we spend $260 we can solve for x.
$260 = 30x + 50
260 - 50 = 30x + 50 - 50
260 - 50 = 30x
210 = 30x
210/30 = 30x/30
210/30 = x
7 = x
So he has played 7 months when he spends $260
Answer:
x = sqrt(29)/2 - 3/2 or x = -3/2 - sqrt(29)/2
Step-by-step explanation by completing the square:
Solve for x over the real numbers:
x^2 + 3 x - 5 = 0
Add 5 to both sides:
x^2 + 3 x = 5
Add 9/4 to both sides:
x^2 + 3 x + 9/4 = 29/4
Write the left hand side as a square:
(x + 3/2)^2 = 29/4
Take the square root of both sides:
x + 3/2 = sqrt(29)/2 or x + 3/2 = -sqrt(29)/2
Subtract 3/2 from both sides:
x = sqrt(29)/2 - 3/2 or x + 3/2 = -sqrt(29)/2
Subtract 3/2 from both sides:
Answer: x = sqrt(29)/2 - 3/2 or x = -3/2 - sqrt(29)/2
<h3><u>The first number is equal to 21.</u></h3><h3><u>The second number is equal to 23.</u></h3><h3><u>The third number is equal to 25.</u></h3>
x + x + 2 = 3(x + 4) - 31
Combine like terms
2x + 2 = 3(x + 4) - 31
Distributive property.
2x + 2 = 3x + 12 - 31
Combine like terms.
2x + 2 = 3x - 19
Subtract 2x from both sides.
2 = x - 19
Add 19 to both sides.
21 = x
The value of the first number is 21.
Answer:
95 thanks for the points
Step-by-step explanation:
Answer:
11, 17, and 28.
Step-by-step explanation:
Lowest number is 
Median is 
Highest number is 
