Answer:
1.25
Step-by-step explanation:
to find the unit rate you have to find out how much one pound will be so you divide 15 by 12 and you get 1.25
X=8 she needs 120, she has 45. She needs 75 more. $10 an hour x 8 = $80
Answer:
The standard form of a quadratic is y = ax^2 + bx + c.
- In this equation, the formula for the axis of symmetry is x = .
- You know that the center will always be along that line, and you've got the x-coordinate already, so just plug that in and get the y-coordinate out for the center.
The vertex form of a quadratic is also helpful, y = a(x-h)^2 + k.
- In this equation, the formula for the center is (h, k), and the axis of symmetry is x = h! That's even easier!
Answer:
Step-by-step explanation:
The key to solving this problem lies in understanding that the domain of the square root function includes ONLY zero or positive numbers.
In this case, we set 4x - 3 ≥ 0.
Solving for 4x: 4x ≥ 3. Therefore, x ≥ 3/4.
The domain of the given function is [3/4, ∞ ).
C=15+X
C being the total cost. Starting at $15 plus an additional $1 (seen as X in the equation) for each student.