5|8-x|
5|8-10|
= 5|-2|
= 5(2)
= 10
The value of the expression when x = 10 is 10.
(1) let there be x book and let the total cost be y dollars.
y=19.25x+40
y=16x+69.25
(2) 19.25x+40=16x+69.25
3.25x=29.25
x=9
9 silver book, 9 gold book.
(3) y=19.25x+40=19.25*9+40=213.25 dollars
both companies' total cost are 213.25 dollars.
Yeah, where I live, to find the slope (or as we call it, the gradient), you just have to do the two y values subtracted from each other, over the two x values subtracted from each other. The important thing is to remember that if you subtract the first y value from the second (so, 12 - 8), you have to do the same thing for the x (6 - 2)

=

= 1.
The slope is 1.
Answer:
-14
Step-by-step explanation:
Follow PEMDAS, then the left -> right rule.
PEMDAS =
Parenthesis
Exponent (& roots)
Multiplication
Division
Addition
Subtraction
First, multiply 6 with -2:
6 x -2 = -12
Next, add 1, then subtract 3.
-12 + 1 = -11
-11 - 3 = -14
-14 is your answer.
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