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Paraphin [41]
3 years ago
5

How do you determine which variable to substitute in for?

Mathematics
1 answer:
stira [4]3 years ago
7 0

Answer:

Substituting for a Variable

If you know the value that the variable is equal to, you can substitute that value in for the variable in the expression! Let's look at an example. Since we know that x=5, we can directly substitute or replace the x in the expression x+3 with a 5 to solve for y!

Step-by-step explanation:

I hope this kinda helps

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Find the two numbers whose sum is 24 and whose product is as large as possible.
svetlana [45]
Let, the numbers are: x, (24-x)
Let, P(x) denote their products. Then, we have:
P(x) = x(24-x) = 24x - x²
P'(x) = 24-2x
P''(x) = -2

Now, P'(x) = 0 ⇒ x = 12
Also, 
P''(12) = -2 < 0

So, By second derivative test, x = 12 is the point of local maxima of p. Hence the product of the numbers is the maximum when the numbers are 12 and (24-12) = 12

So, In short that numbers would be 12,12

Hope this helps!
4 0
3 years ago
There are 20 pieces of fruit in a bowl and 8 of them are
Scilla [17]
40% of the pieces of fruit in the Bowl are apples.
Step-by-step explanation:
Given the statement:- There are 15 pieces of fruit in a bowl and six of them are apples.
⇒ Total number of pieces of fruit in a bowl = 15 pieces
and
Number of pieces of apple in a bowl = 6 pieces.
To find the percentage of the pieces of fruit in the Bowl are apples.

=
Therefore, 40% of the pieces of fruit in the Bowl are apples.
4 0
3 years ago
QUICKK EXPERTS/ACE OR ANYONE WHO WANTS TO HELP!!
Vika [28.1K]
The solution would be where the red and blue lines cross, which is at (2,7)
5 0
3 years ago
Expand logarithm equation please
Ymorist [56]

Answer:

2/3lna

Step-by-step explanation:

ln (a^(1/3))^2

=ln (a)^(2/3)

=2/3lna

7 0
3 years ago
I’ll mark you brainliest . <br> It’s either B,C,or D
dsp73
Is the letter B I think
8 0
3 years ago
Read 2 more answers
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