Answer:
4 and 5 not functions 6 function
Step-by-step explanation:
In a function, each x value can only have one y value. To test this, you can try the vertical line test. Put a vertical line on the function; if it touches only one point the graph is a function. For graph 4, the x value of 3 has y values of 1 and 4 so it is not a function. For graph 5, the x values of 1 and 5 have many y values so the graph isn't a function. For graph 6, each x value has only one y value so it is a function.
Answer:
I want 50 points
Step-by-step explanation:
Nothing
X= number of student tickets soldx+75= number of adult tickets sold
Add the number of student and adult tickets together to total 725 tickets
x + (x + 75)= 725
combine like terms
2x + 75= 725subtract 75 from both sides
2x= 650divide both sides by 2
x= 325 adult tickets
x + 75= 400 student tickets
ANSWER: There were 325 adult tickets sold
Hope this helps! :)
526.32
I would recommend using an inequality. 100/x=19/100 and solve from there.

Convert mixed numbers to improper fractions

Find de LCD for 4 and 8 :
Factor each denominator into its primes:


Find the least common denominator

Adjust fractions based on the LCD :

Since the denominators are equal , combine the fractions:



Therefore:
Convert improper fractions to mixed numbers

hope this helps!