En 16 años, Juan tendrá 3 veces la edad que José tiene ahora. Indica qué planteamientos son correctos.

La edad de Juan en este momento

= [3 × (La edad de José en este momento)] - 16

Juan's age right now = [3×(Jose's age right now)] - 16

Step-by-step explanation:

Deje que la edad de José en este momento sea x.

Entonces la edad de Juan ahora es y.

En 16 años,

La edad de José = x + 16

Edad de Juan = y + 16

En 16 años, Juan tendrá 3 veces la edad que tiene José ahora

(y + 16) = 3x

Entonces, la edad de Juan ahora y la relación correcta entre las edades de Juan y José en este momento es y = 3x - 16

¡¡¡Espero que esto ayude!!!

English Translation

In 16 years, Juan will be 3 times the age that José is now. Indicate which approaches are correct.

Solution

Let José's age right now be x.

Then Juan's age right now be y.

In 16 years time,

Jose's age = x + 16

Juan's age = y + 16

In 16 years, Juan will be 3 times the age that José is now

(y + 16) = 3x

So, Juan's age now and the correct relationship between Juan and Jose's ages right now is

y = 3x - 16

Hope this Helps!!!

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.