Answer:
the first part of the book has 659 pages and the second part has 723 pages
Step-by-step explanation:
First we have to raise 2 equations, one that shows us the relationship between one part of the book and the other, and another equation that shows us that together they give us the total of pages
x = second part
y = first part
x = y + 64
x + y = 1382
As the first equation tells us that x = y + 64 we will replace x in the second equation with (y + 64)
x + y = 1382
(y + 64) + y = 1382
y + y = 1382 - 64
2y = 1318
y = 1318/2
y = 659
now we replace in the first equation to y by its value
x = y + 64
x = 659 + 64
x = 723
so the first part of the book has 659 pages and the second part has 723
Answer:
f(2) = -4
Step-by-step explanation:
for f(2), plug it into f(x)=3x-10
3(2)-10
6-10
-4
f(2) = -4
The third set is equivalent to
2x + y = 2
2x + y = -2
clearly inconsistent.
3x + 8 = 3x + []
Subtract 3x from both sides.
[] = 8
If you want no values of x, it can be any positive value other than 8.
If you want all values of x, the value must be 8.
If you want only one value of x, it is impossible because both equations have the same slope.
