Answer:
2 meters.
Step-by-step explanation:
Just trust me. Khan Academy answer.
Answer:
Step-by-step explanation:
Change all the values given to one unit. (Litres to millilitres to avoid working with decimals)
Let x represent the amount of water left to be poured.
Since all will be equal to the volume of the tank, equate all values to the total capacity of the tank.
Change the subject and solve.
Hope you understood.
Have a nice day. :)
Answer: (f+g)(5)=37
Step-by-step explanation:
(f+g) (5) is the same as saying f(5)+g(5). Since we are given f(x) and g(x), we can use them to solve. There are two ways to solve. One is to find f(5) and g(5), and then add them together. Another way is to do (f+g)(x), then plug in x=5. I will show both methods.
Method 1
f(5)=4(5)-7 [multiply]
f(5)=20-7 [subtract]
f(5)=13
g(5)=3(5)+9 [multiply]
g(5)=15+9 [add]
g(5)=24
(f+g)(5)=13+24 [add f(5) and g(5)]
(f+g)(5)=37
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Method 2
(f+g)(x)=4x-7+3x+9 [combine like terms]
(f+g)(x)=7x+2
(f+g)(5)=7(5)+2 [plug in x=5]
(f+g)(5)=35+2 [add]
(f+g)(5)=37
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Now, we know that (f+g)(5)=37. We confirmed this with both methods.
Answer:
Step-by-step explanation: