60t+20t=150
80t=150
t=150/80=15/8
Note: t is only half the time, the total time is 15/4=3 hours 45 minutes
The statements that are true about the volume of the greenhouses are: B and E.
<h3>What is the Volume of Rectangular Prism and Pyramid?</h3>
Volume of rectangular prism = (length)(width)(height)
Volume of rectangular pyramid = 1/3(length)(width)(height)
Volume of Greenhouse 1 = volume of rectangular prism + volume of rectangular pyramid = (12)(12)(10) + 1/3(12)(12)(8) = 1,824 m³
Volume of Greenhouse 2 = volume of rectangular prism + volume of triangular prism = (12)(12)(10) + 1/2(12)(8)(12) = 2,016 m³
Difference between the spaces in both greenhouses = 2,016 - 1,824 = 192 m³
Therefore, the true statements about the greenhouses are: Option B and Option E.
Learn more about the volume of rectangular prism and pyramid on:
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Answer:
answer is d) $20
Step-by-step explanation:
because 2x4=8 + 2x4=8 = $16 then 4 packets for $1 is $4 16+4= $20
Answer: the number of social media advertisements that you purchased is 18
The number of newspaper advertisements that you purchased is 6
Step-by-step explanation:
Let x represent the number of social media advertisements that you purchased.
Let y represent the number of newspaper advertisements that you purchased.
You purchase three social media advertisements for every one newspaper advertisement. This means that
y = x/3
x = 3y
You end up purchasing a total of 24 advertisements. This means that
x + y = 24 - - - - - - - - - 1
Substituting y = into equation 1, it becomes
3y + y = 24
4y = 24
y = 24/4 = 6
x = 3y = 6×3 = 18
The equations are
x = 3y
x + y = 24
Step-by-step explanation:
the 6th one is last the hexagon
7th is do it a bit on ur left like shade corner middle
hope it helped and pls brainlist:) if u do i will do all of em for u