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

30w^3 -6w --------------- 6w

23. Although they are radially symmetrical, echinoderms are more closely related to a human than to a jellyfish because they are ________. (1 point)

The early Egyptians are thought to have used what type of scale?

How do you think the defenders of the Negro Fort in Florida might have inspired enslaved African Americans in the United States

Which formula represents a molecular compound? (1) Kr (3) N2O4 (2) LiOH (4) NaI

Researchers attempt to find the truth about a subject. true false

A certain forest covers an area of 3100 km2. Suppose that each year this area decreases by 7.5%. What will the area be after 5 years? Round your answer to the n

A change in the nucleus of an atom that converts the atom from one element to another element is called (1) combustion (3) polymerization (2) neutralization (4)

a circular mirror has a diameter o 12 inches. what is the area , in square inches , of the mirror

What is the charge of the nucleus of an oxygen atom?(1) 0 (2) -2 (3) +8 (4) +16