Answer:
2/7
Step-by-step explanation:
From 8 am to 3 pm, there are 7 hours, and the price changed $2 (52 - 50 = 2)
In order to find the Change in price per hour, divide the total price change by the number of hours. (in most questions with the word "per", it is a division problem)
2$ / 7hrs = 2/7 dollars per hour
Answer:
use common sense!!!!!!!!!!!!!!!!!!!!!
Hey there,
Put the equation into the circle equation [ (x - h)² + (y - k)² = r² ].
x² + y² + 4x + 8y = -11
(x² + 4x) + (y² + 8y) = -11
(x + 2)² + (y + 4)² = 9
If that is confusing, you can always rewrite it to show exactly what you need in the circle equation.
(x - (-2))² + (y - (-4))² = 3²
Therefore, using the circle equation we can see that the center is at the point (-2, -4) and the radius is 3.
Best of Luck!
Answer:
1/6
Step-by-step explanation:
Convert 17 feet to inches. 17×12 = 204
204 inches to 34 inches.
204/34 = 6
Remember we are scaling down
204× 1/6 = 34
Answer/Step-by-step explanation:
The two triangles we have in the diagram shar the same vertex. They are both similar triangles. Therefore, their side lengths would be proportional.
This means:
![\frac{9.8}{4.3} = \frac{r}{5.1} = \frac{n}{2.7}](https://tex.z-dn.net/?f=%20%5Cfrac%7B9.8%7D%7B4.3%7D%20%3D%20%5Cfrac%7Br%7D%7B5.1%7D%20%3D%20%5Cfrac%7Bn%7D%7B2.7%7D%20)
Solve for variable r and n respectively.
Thus:
![\frac{9.8}{4.3} = \frac{r}{5.1}](https://tex.z-dn.net/?f=%20%5Cfrac%7B9.8%7D%7B4.3%7D%20%3D%20%5Cfrac%7Br%7D%7B5.1%7D%20)
Multiply both besides by 5.1
![\frac{9.8}{4.3} \times 5.1 = \frac{r}{5.1} \times 5.1](https://tex.z-dn.net/?f=%20%5Cfrac%7B9.8%7D%7B4.3%7D%20%5Ctimes%205.1%20%3D%20%5Cfrac%7Br%7D%7B5.1%7D%20%5Ctimes%205.1%20)
![\frac{9.8 \times 5.1}{4.3} = r](https://tex.z-dn.net/?f=%20%5Cfrac%7B9.8%20%5Ctimes%205.1%7D%7B4.3%7D%20%3D%20r%20)
11.6 = r (nearest tenth)
Also,
![\frac{9.8}{4.3} = \frac{n}{2.7}](https://tex.z-dn.net/?f=%20%5Cfrac%7B9.8%7D%7B4.3%7D%20%3D%20%5Cfrac%7Bn%7D%7B2.7%7D%20)
Multiply both besides by 2.7
![\frac{9.8}{4.3} \times 2.7 = \frac{n}{5.1} \times 2.7](https://tex.z-dn.net/?f=%20%5Cfrac%7B9.8%7D%7B4.3%7D%20%5Ctimes%202.7%20%3D%20%5Cfrac%7Bn%7D%7B5.1%7D%20%5Ctimes%202.7%20)
![\frac{9.8 \times 2.7}{4.3} = r](https://tex.z-dn.net/?f=%20%5Cfrac%7B9.8%20%5Ctimes%202.7%7D%7B4.3%7D%20%3D%20r%20)
6.2 = n (nearest tenth)