Una ventana rectangular tiene l metros de ancho y h metros de altura, con un perímetro de 6 metros y un área de 2m² ¿cuál es la fórmula para calcular el ancho de la ventana?

The formula for calculating the width of the window is

Step-by-step explanation:

The question in English is

A rectangular window is l meters wide and h meters high, with a perimeter of 6 meters and an area of 2m². What is the formula for calculating the width of the window?

we know that

The perimeter of the window is equal to

we have

so

simplify

isolate the variable l

----> equation A

The area of the window is equal to

we have

so

----> equation B

substitute equation A in equation B

solve for w

The formula to solve a quadratic equation of the form

is equal to

in this problem we have

so

substitute in the formula

 --->  formula for calculating the width of the window

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!

answer: it's upside down and i can't read it

step-by-step explanation: