PLEASE HELP! At a local fair, the admission fees are $1.50 for children, $3 for college students, and $5 for adults.

On Saturday, 1500 tickets were sold and brought in $5500.

The number of college student tickets sold was 100 less than the number of children's tickets sold.

How many children's tickets were sold?

Children's' Tickets Sold: 400

College Tickets Sold: 300

Adult Tickets Sold: 800

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Pre-Calculus

Step-by-step explanation:

Step 1: Define Variables

x = children tickets

y = college tickets

z = adult tickets

Step 2: Define Systems

Use the given information to set up the equations.

x + y + z = 1500

1.5x + 3y + 5z = 5500

y = x - 100

Step 3: Redefine Systems

x + y + z = 1500

1.5x + 3y + 5z = 5500

-x + y = -100

Step 4: Solve for x

Here we see that our x = 400, y = 300, and z = 800. Correspond this with our defined variables and we have our answer.

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.

its the second choice.

step-by-step explanation:

the elements in the range will be 7 less than the elements in the domain.