X-5=x I'm sure it can be the correct
Answer:
- $2.79 per bottle
- $0.186 per ounce
Step-by-step explanation:
When you talk about "unit price," you need to define the unit of interest. Unit prices on grocery store shelves don't always use the same unit, even for like items. Here it might be convenient to use any of the following as the "unit":
- 1 bottle
- 1 ounce
- 1 pint (16 ounces)
- 1 cup (8 ounces)
The "unit price" is computed as ...
unit price = (price for some number of units)/(the number of units)
The "number of units" may be larger, smaller, or equal to 1.
Then the price per cup (8 ounces) would be ...
unit price = (price for 15 oz)/(15/8 cups) = ($2.79)(8/15)
= $1.488 per cup
__
The price per ounce would be ...
unit price = ($2.79)/(15 oz) = $0.186/oz
__
We assume that the unit of interest is probably 1 ounce, but it could be something else. Your grader may expect the value to be rounded to the nearest cent, $0.19 per ounce.
Answer:
Luis’s, because he flipped the inequality sign when he subtracted
Step-by-step explanation:
Given:
7.2b + 6.5 > 4.8b – 8.1.
Amelia started by subtracting 7.2b from both sides to get 6.5 > –2.4b – 8.1.
Amelia:
7.2b + 6.5 - 7.2b > 4.8b – 8.1 - 7.2b
6.5 > -2.4b - 8.1
Correct
Luis started by subtracting 4.8b from both sides to get 2.4b + 6.5 < – 8.1.
7.2b + 6.5 - 4.8b > 4.8b – 8.1 - 4.8b
2.4b + 6.5 > -8.1
Incorrect
Shauna started by subtracting 6.5 from both sides to get 7.2b > 4.8b – 14.6
7.2b + 6.5 - 6.5 > 4.8b – 8.1 - 6.5
7.2b > 4.8b - 14.6
Correct
Clarence started by adding 8.1 to both sides to get 7.2b + 14.6 > 4.8b.
7.2b + 6.5 + 8.1 > 4.8b – 8.1 + 8.1
7.2b + 14.6 > 4.8b
Correct
You need to shift the decimal 3 spaces to the left, which would get you 0.0034.
Answer:
1: 3 ratio of the volume of the cone to the volume of the cylinder
Step-by-step explanation:
Volume of cone(V) is given by:
![V = \frac{1}{3} \pi r^2h](https://tex.z-dn.net/?f=V%20%3D%20%5Cfrac%7B1%7D%7B3%7D%20%5Cpi%20r%5E2h)
where, r is the radius and h is the height of the cone.
Volume of cylinder(V') is given by:
![V' = \pi r'^2h'](https://tex.z-dn.net/?f=V%27%20%3D%20%5Cpi%20r%27%5E2h%27)
where, r' is the radius and h' is the height of the cylinder.
As per the statement:
A cylinder and a cone have congruent heights and radii.
⇒r = r' and h = h'
then;
![\frac{V}{V'} = \frac{ \frac{1}{3} \pi r^2h}{\pi r'^2h'} = \frac{ \frac{1}{3} \pi r'^2h'}{\pi r'^2h'}](https://tex.z-dn.net/?f=%5Cfrac%7BV%7D%7BV%27%7D%20%3D%20%5Cfrac%7B%20%5Cfrac%7B1%7D%7B3%7D%20%5Cpi%20r%5E2h%7D%7B%5Cpi%20r%27%5E2h%27%7D%20%3D%20%5Cfrac%7B%20%5Cfrac%7B1%7D%7B3%7D%20%5Cpi%20r%27%5E2h%27%7D%7B%5Cpi%20r%27%5E2h%27%7D)
⇒![\frac{V}{V'} =\frac{1}{3} = 1 : 3](https://tex.z-dn.net/?f=%5Cfrac%7BV%7D%7BV%27%7D%20%3D%5Cfrac%7B1%7D%7B3%7D%20%3D%201%20%3A%203)
Therefore, the ratio of the volume of the cone to the volume of the cylinder is, 1 : 3