Answer:
x = 20
y = 100
Step-by-step explanation:
To figure out x do this.
3x + 2x = 7x - 40 (collect like terms)
5x = 7x -40 (subtract 7x on both sides)
-2x = -40 (divide by -2 on both sides)
x = 20
Plug in to get y
Since 7x - 40 and y are vertical they equal the same amount
7(20) - 40 = y (multiply 7 by 20)
140 - 40 = y (collect like terms)
100 = y
Hope this helps ya! Keep smiling!
We are given f(x) =3x and g(x) =2x
Now we have to find (g*f)(x).
so (g*f)(x) means we multiply f(x) and g(x).
So multiplying 3x and 2x,
3x * 2x = 6x²
So (g*f)(x) =6x²
Answer:
50%
Step-by-step explanation:
50% of anything is half that being said half of 8 would be 4. SHEEEEEESH
Rule for sequence a is: a_n = 10-3n
Rule for sequence b is: a_n = -19+8n
Step-by-step explanation:
a.)7, 4, 1, -2, ...
First of all we have to find the common difference. Common difference is the difference between consecutive terms of an arithmetic sequence
Here,

The explicit rule for an arithmetic sequence is:

Putting the value of a1 and d

b.)-11, -3, 5, 13, ...
First of all we have to find the common difference. Common difference is the difference between consecutive terms of an arithmetic sequence
Here,

The explicit rule for an arithmetic sequence is:

Putting the value of a1 and d

Hence,
Rule for sequence a is: a_n = 10-3n
Rule for sequence b is: a_n = -19+8n
Keywords: Arithmetic sequence, common difference
Learn more about arithmetic sequence at:
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