![190x +80(3x) = 3440](https://tex.z-dn.net/?f=190x%20%2B80%283x%29%20%3D%203440)
x represents how many are sold. then multiply 80×3
![80 \times 3 = 240](https://tex.z-dn.net/?f=80%20%5Ctimes%203%20%3D%20240)
then add your x together
![190x + 240x = 430x](https://tex.z-dn.net/?f=190x%20%2B%20240x%20%3D%20430x)
then you must divide your x by 3440
![3440 \div 430 = 8](https://tex.z-dn.net/?f=3440%20%5Cdiv%20430%20%3D%208)
8 is how many higher-priced speakers take you 8 and multiple it by 3 to get how many lower-priced speakers
![8 \times 3 = 24](https://tex.z-dn.net/?f=8%20%5Ctimes%203%20%3D%2024)
you have 24 low priced speaker and 8 high priced speakers.
5) the ratio would be 6:16 so you have to multiply everything by 2 to get 12:32
12 ounces, b is your answer
6)ok if we look at 18,24, and 30 the GCF is 6 so thats the amount of baskets you can make
7) all you have to do is move the decimal place over 3 times so your answer is 0.134
8) lets first convert everything to percentages
17% 16.6% 16% and 16.8% so tisha wins
Idk what that answer is but good luck
Answer:
12π
Step-by-step explanation:
Volume of the cone is πr^2 * h / 3
r = 3
h = 4
9π * 4 / 3 = 12π
Answer:
option F
Step-by-step explanation:
given,
capacity of tank = 1000 gallon
volume of water leak = 300 gallon
time = 30 min
water is leaking at the rate
formula used
![A = B e^{-kt}](https://tex.z-dn.net/?f=A%20%3D%20B%20e%5E%7B-kt%7D)
At t = 0 A = 1000 gallons
![1000= B e^{-k\times 0}](https://tex.z-dn.net/?f=1000%3D%20B%20e%5E%7B-k%5Ctimes%200%7D)
B = 1000
![A = 1000 e^{-kt}](https://tex.z-dn.net/?f=A%20%3D%201000%20e%5E%7B-kt%7D)
at t = 30 A = 700
![700= 1000 e^{-k\times 30}](https://tex.z-dn.net/?f=700%3D%201000%20e%5E%7B-k%5Ctimes%2030%7D)
![e^{-k\times 30}=0.7](https://tex.z-dn.net/?f=e%5E%7B-k%5Ctimes%2030%7D%3D0.7)
taking ln both side
![-k\times 30=ln(0.7)](https://tex.z-dn.net/?f=-k%5Ctimes%2030%3Dln%280.7%29)
![k=-\dfrac{ln(0.7)}{30}](https://tex.z-dn.net/?f=k%3D-%5Cdfrac%7Bln%280.7%29%7D%7B30%7D)
now,
![A = 1000 e^{\dfrac{ln(0.7)}{30}t}](https://tex.z-dn.net/?f=A%20%3D%201000%20e%5E%7B%5Cdfrac%7Bln%280.7%29%7D%7B30%7Dt%7D)
![A = 1000\times 0.7 e^{\dfrac{t}{30}}](https://tex.z-dn.net/?f=A%20%3D%201000%5Ctimes%200.7%20e%5E%7B%5Cdfrac%7Bt%7D%7B30%7D%7D)
![A = 700 e^{\dfrac{t}{30}}](https://tex.z-dn.net/?f=A%20%3D%20700%20e%5E%7B%5Cdfrac%7Bt%7D%7B30%7D%7D)
hence, the correct answer is option F