La piramide cuenta con 9 plataformas, la superior mide 16m de lado, la segunda 5.5m más que la primera, la tercera 5.5m más que la segunda y asi susesivamente hasta llegar a la ultima. Todas las plataformas tienen 2.5m de altura Tambien cuentan con cuatro escalinatas con 91 escalones cada una, que miden 30.6 cm de fondo y 24.7 cm de altura. ¿cuanto mide la plataforma inferior por lado?
¿Cuál es el ángulo de inclinación que se forma entre una plataformay la siguiente?
¿Qué distancia hay desde la base de la escalinata hasta la plataforma superior?

x = -5

step-by-step explanation:

proportions are fractions that equal to each other. so if two fractions are the same, they are proportional.

let's check the answers to see if they are proportional.

question a is not proportional because you can't turn 1.5/3 to 3/9. if you try to multiply 1.5/3 by 2 or 3, you wont get 3/9. it's impossible to make the fractions the same.

question b is not proportional because you can't turn 22/33 to 4/6. 33 can't go into 6.

question c is proportional because when you multiply 2 and 3 by 71, you would get 142/213, and those fractions equal to each other

question d is proportional because when you divide 14 and 7 by 2, you would end up with 7/3.5, and those fractions equal to each other.

hd extra 3-7 x d en is the answer