Answer:
Step-by-step explanation:
<u>The first equation:</u>
<u>The second equation:</u>
<u>Convert to slope-intercept form:</u>
- x + 2y = 23 ⇒ 2y = -x + 23 ⇒ y = -1/2x + 11.5
- 2x + 3y = 39 ⇒ 3y = -2x + 39 ⇒ y = -2/3x + 13
<em>The graph is attached</em>
<u>Intersection point is (9, 7)</u>
- Adult tickets cost $9
- Child tickets cost $7
Answer:
multiply 0.05 by amount of grid cubes!
Step-by-step explanation:
Answer:
75cm²
Step-by-step explanation:
area of parallelogram= base*height
area=15*5=75cm²
Answer: ![x = (\frac{1}{4ab})^{2}](https://tex.z-dn.net/?f=x%20%3D%20%28%5Cfrac%7B1%7D%7B4ab%7D%29%5E%7B2%7D)
Step-by-step explanation:
Given:
![4a\sqrt{x} = \frac{1}{b}](https://tex.z-dn.net/?f=4a%5Csqrt%7Bx%7D%20%3D%20%5Cfrac%7B1%7D%7Bb%7D)
To make
the subject of the formula means that we want to make
to stand alone , the first thing to do is to multiply through by 1/4a , that is
![\sqrt{x} = \frac{1}{4ab}](https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D%20%3D%20%5Cfrac%7B1%7D%7B4ab%7D)
take the square of both sides:
![x = (\frac{1}{4ab})^{2}](https://tex.z-dn.net/?f=x%20%3D%20%28%5Cfrac%7B1%7D%7B4ab%7D%29%5E%7B2%7D)