Camila's favorite number is positive, and the square of her number plus twice her number
is 24. what is her favorite number?

Camila's favorite number is 4

Step-by-step explanation:

Hello, I can help you with this.

you can easily solve this by constructing a equation for the situation and then to find the unknown value.

Step 1

define

Let

x= the Camila's favorite

according to the problem.

Camila's favorite number is positive,so

X≥0

and

the square of her number plus twice her number is 24

Step 2

solve for x

using the quadratic equation

a=1

b=2

c=-24

put the values into the equation

the second x in -6, it does not work because we are looking for a positive number so the answer is

4

Have a great day.

yes

step-by-step explanation:

yes

24

step-by-step explanation:

the graph shows 30% of students walk. 80 students were questioned, so the number that said they walk is

30% × 80 = 0.30 × 80 = 24