Answer: 8g + 1
Step-by-step explanation:
(5g + 4) + 3(g - 1)
5g + 4 + 3g - 3
Bring like terms together
5g + 3g + 4 - 3
Combine like terms
8g + 1
I'm not sure what grid you're referring to, but in the factorized form this equation is 4(4x^2 + 12xy +9y).
Answer:
-31, -26, -5
Step-by-step explanation:
Answer:
The last quiz score must be at least an 80 to get the average to be a 70.
Step-by-step explanation:
In order to find this, you need to take the average of the 4 test scores along with the unknown test score (x). So, to find an average, we add all the numbers together and divide by the amount of tests taken. We can then set this equal to 70 since that is the minimum average.
(60 + 64 + 75 + 71 + x)/5 = 70 ------> Multiply both sides by 5
(60 + 64 + 75 + 71 + x) = 350 -----> Combine like terms
270 + x = 350 -----> Subtract 270 from both sides
x = 80
Carbon dioxide from the atmosphere dissolves in the surface waters of the ocean. Some of the carbon dioxide stays as dissolved gas, but much of it gets turned into other things. Photosynthesis by tiny marine plants (phytoplankton) in the sunlit surface waters turns the carbon into organic matter.
