The answer is 6 People. You make the two equations first 12.99x and 8.99x+20. And then make them equal each other 12.99x = 8.99x+20. Then you use algebra to solve for the x and you get an answer of 5. That is the number of people that would cause the two prices to break even (be the same price). So in order for the group rate to be the better deal you need 6 people to attend.
Answer:
<h2>The specific heat of the metal is 0.274951 calories/gram-degree C.</h2>
Step-by-step explanation:
Let, the specific heat of the container is x calories/gram-degree C.
The container and water gains (18 - 15) = 3 degrees C.
Hence, the transfer of heat is
.
The metal, which is dropped in the water, losses (164 - 18)= 144 degrees C.
Hence, the transfer of heat is
.
As per the given conditions,
.
Let the total seed packets needed Anthony to have 90 plants be x.
then,
64:32 :: 90:x
2:1 :: 90:x
90 = 2x
x = 45 seed packets.
________________________
64 plants = 32 seed packets.
1 plant =
![\frac{32}{64} = \frac{1}{2}](https://tex.z-dn.net/?f=%20%5Cfrac%7B32%7D%7B64%7D%20%3D%20%5Cfrac%7B1%7D%7B2%7D%20)
seed packets.
90 plants =
![\frac{1}{2} \times 90 = 45](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B2%7D%20%5Ctimes%2090%20%3D%2045)
seed packets.
Anthony need 45 seed packets to have 90 plants.
!! Hope It Helps !!