For this case, the first thing we must do is define variables.
We have then:
x: length of the bookshelf
y: thickness of each book
The equation for the number of books is:
Substituting values we have:
Doing the calculation we have:
Answer:
200 copies of this book will fit on the bookshelf
Answer:
3x² - 21x + 30
Step-by-step explanation:
y = 3(x - 5)(x - 2) ← expand factors using FOIL
= 3(x² - 7x + 10) ← distribute parenthesis by 3
y = 3x² - 21x + 30 ← in standard form
First keep in mind that the given value is negative and that it is
greater than or
equal to whatever '<em>v</em>' is.
When solving for a variable in any equation, you do something to both sides in order to keep it equal. Here, <em>v</em> is being subtracted by 1.9; therefore we can
add 1.9 to both sides in order to isolate <em />the variable.
Despite not needing a value for the question, it is worth noting that since this is an inequality, <em>v </em>can be any value from -6.4 to ∞ in order to make it true.
OPTION A is the correct answer.
About 39 cats are in the shelter
