Answer:
340
Step-by-step explanation:
If x is the amount of pages in the book we can write:
1/4x + 5 + 3/5(x - (1/4x + 5)) + 10 + 12 + 24 = x
1/4x + 51 + 3/5(3/4x - 5) = x
1/4x + 51 + 9/20x - 3 = x
7/10x + 48 = x
3/10x = 48
x = 160
Answer:
f(x)=1.8 × 2(6)
=1.8 × 12
=216
<h3><u>f</u><u>(</u><u>x</u><u>)</u><u>=</u><u>2</u><u>1</u><u>6</u></h3>
<span> x =(-12-√-432)/18=(-2-2i√<span> 3 </span>)/3= -0.6667-1.1547i</span><span> x =(-12+√-432)/18=(-2+2i√<span> 3 </span>)/3= -0.6667+1.1547i</span><span> x = 4/3 = 1.333</span>
Expressions are mathematical statements represented with the variables
The value of 12x^-3 y-1 for x=-1 and y=5 is - 12/5
<h3>How to determine the value of the variable</h3>
The expression is given as:

When x = -1, the expression becomes

Evaluate the exponent

When y = 5, the expression becomes

Evaluate the exponent
- 12/5
Hence, the value of 12x^-3 y-1 for x=-1 and y=5 is - 12/5
Read more about expressions at:
brainly.com/question/723406