Answer:
You need to rent 14 videos, and you'll pay the same amount for both. Renting 15 will make the membership a better method of payment.
Step-by-step explanation:
Let Number of videos to be rented be x;
Given:
For non members;
Cost of renting 1 video = $4
Cost for renting x videos = ![4x](https://tex.z-dn.net/?f=4x)
For Members;
Membership cost = $21
Cost of renting 1 video = $2.50
Cost of renting x video = ![2.5x](https://tex.z-dn.net/?f=2.5x)
We can create an equation. Say the number of videos you rent is given by x
. We can write that, if we rent x videos without membership, we'll have to pay
. If we rent the same amount of videos with membership, we'll have to pay
.
Hence the equation can written as
![4x=21+2.5x\\4x-2.5x=21\\1.5x=21\\x=\frac{21}{1.5}=14](https://tex.z-dn.net/?f=4x%3D21%2B2.5x%5C%5C4x-2.5x%3D21%5C%5C1.5x%3D21%5C%5Cx%3D%5Cfrac%7B21%7D%7B1.5%7D%3D14)
Hence You need to rent 14 videos, and you'll pay the same amount for both. Renting 15 will make the membership a better method of payment.
Answer:
20x + 42y
Step-by-step explanation:
Answer:
60 small and 140 large = 60 + 280 = 340 this is correct!
Step-by-step explanation:
I guess we just use the process of eleimation.
50 small and 150 Large = 50+300 = 350 so that's not right.
130 small and 70 large = 130 + 140 = 270 so, that's not right.
120 small and 80 large = 120 + 160 = 280 so, that's not right.
60 small and 140 large = 60 + 280 = 340 this is correct!
Answer:
The ladder has to be 65 feet long to the nearest foot.
Step-by-step explanation:
The height of the chimney from the ground is the sum of the height of the wall and the height of the chimney.
Therefore, the height of the chimney from the ground = (30 + 33) = 63 feet.
Now, the ladder makes a right triangle with the ground and the chimney and the ladder makes an angle of 75.5° with the ground.
Therefore, using trigonometry we can write,
![\sin 75.5 ^{\circ} = \frac{\textrm {The height of the chimney from the ground}}{\textrm {Length of the ladder}} = \frac{63}{\textrm {Length of the ladder}}](https://tex.z-dn.net/?f=%5Csin%2075.5%20%5E%7B%5Ccirc%7D%20%3D%20%5Cfrac%7B%5Ctextrm%20%7BThe%20height%20of%20the%20chimney%20from%20the%20ground%7D%7D%7B%5Ctextrm%20%7BLength%20of%20the%20ladder%7D%7D%20%3D%20%5Cfrac%7B63%7D%7B%5Ctextrm%20%7BLength%20of%20the%20ladder%7D%7D)
⇒ The length of the ladder = 65 feet.
Hence, the ladder has to be 65 feet long to the nearest foot. (Answer)
Answer: e) a pie graph showing the percentages of the whole
Step-by-step explanation: this is the answer from usa test prep