Answer:
you pay $69.74
Step-by-step explanation:
total cost without coupon: 15+65+14 = 94
apply the 30% discount ⇒ 94 × .30 = 28.20
subtract the savings ⇒ 94.00 - 28.20
total, after coupon, before tax ⇒ 65.80
apply 6% tax to 65.80 ⇒ 65.8 × .06 ⇒ 3.94
add tax to cost after coupon ⇒ 65.80 + 3.94
you pay $69.74
It seems to me, that if you were to add the price of all three items together, then multiply by 7.5%, you'd have the answer. Remember that 7.5% = .075 ... in other words, that is the number you would multiply the sum of the items by. Does that help?
Data:
v (volume) = ?
h (height) = 10 m
r (radius) = 5 m
Adopting:
![\pi \approx 3.14](https://tex.z-dn.net/?f=%20%5Cpi%20%5Capprox%203.14)
Formula:
![V = h* \pi *r^2](https://tex.z-dn.net/?f=V%20%3D%20h%2A%20%5Cpi%20%2Ar%5E2)
Solving:
![V = h* \pi *r^2](https://tex.z-dn.net/?f=V%20%3D%20h%2A%20%5Cpi%20%2Ar%5E2)
![V = 10*3.14*5^2](https://tex.z-dn.net/?f=V%20%3D%2010%2A3.14%2A5%5E2)
![V = 10*3.14*25](https://tex.z-dn.net/?f=V%20%3D%2010%2A3.14%2A25)
![\boxed{V=785\:m^3}}\end{array}](https://tex.z-dn.net/?f=%5Cboxed%7BV%3D785%5C%3Am%5E3%7D%7D%5Cend%7Barray%7D)
If:
785 m³ → 100%
y m³ → 75%
Solving: <span>Rule of three (directly proportional)
</span>
![\frac{785}{y} = \frac{100}{75}](https://tex.z-dn.net/?f=%20%5Cfrac%7B785%7D%7By%7D%20%3D%20%5Cfrac%7B100%7D%7B75%7D%20)
multiply cross
![100*y = 785*75](https://tex.z-dn.net/?f=100%2Ay%20%3D%20785%2A75)
![100y = 58875](https://tex.z-dn.net/?f=100y%20%3D%2058875)
![y = \frac{58875}{100}](https://tex.z-dn.net/?f=y%20%3D%20%20%5Cfrac%7B58875%7D%7B100%7D%20)
![\boxed{\boxed{y = 588.75\:m^3}}\end{array}}\qquad\quad\checkmark](https://tex.z-dn.net/?f=%5Cboxed%7B%5Cboxed%7By%20%3D%20588.75%5C%3Am%5E3%7D%7D%5Cend%7Barray%7D%7D%5Cqquad%5Cquad%5Ccheckmark)
Answer:
<span>
The volume of water that the tank contains when it is 75% full is 588.75 m³</span>
Answer:
i think its -0.25
Step-by-step explanation:
i dont really ave an explanation a just used a calculator
Answer:
3/4 divide by 1/8 is 6.
Bryan can serve 6 bowls of blue berries
Step-by-step explanation: