lanashanabJHsbd8821 lanashanabJHsbd8821

04-06-2020
Mathematics

contestada

I am a three-digit number. My second digit is 4 times bigger than the third digit. My first digit is 3 less than my second digit. Who am I?

Respuesta :

maempress maempress

05-06-2020

Answer:

285

Step-by-step explanation:

use algebra

third is x

second is 4x

first is 4x-3

x+4x+4x-3

9x-3 = x+x+1+x+2

9x-3=3x+3

12x=6, divide x=2

third is 2, sec is 8, first is 5

Answer Link

Otras preguntas

help me the area of a rectangular roof of a doghouse is 756 square inches. the length of the roof is 108 inches. how many inches wide is the roof? show the math

Explain why a mixed number is not in the set of intergers or whole numbers

8. A pattern of being late for work or for appointments is usuallyA. a habit learned early, which is nearly impossible to break.B. directly related to one's per

Which two countries were the first to declare war on Germany in WWII?

Write an addition equation with a positive addend and a negative addend and a resulting sum of -8

Factor the expression -10x^2-41x-21

Who was Malinche and what other name was she called?

simplify expression.-3(k-4)-4(2k-8)

help me the area of a rectangular roof of a doghouse is 756 square inches. the length of the roof is 108 inches. how many inches wide is the roof? show the math

How did the formation of alliances affect the outbreak of war?