Alissa7yafaite Alissa7yafaite

15-03-2017
Mathematics

contestada

Three times the larger number of two numbers is equal to four times the smaller. the sum of the numbers is 21. find the numbers

Respuesta :

rarrininger rarrininger

15-03-2017

x=larger number
y=smaller number

3x = 4y
x+y=21

3x=4y
3x÷3= 4y÷3
x = 4/3y

x+y=21
4/3y+y=21
1 4/3y=21
1 4/3y ÷ 1 4/3=21 ÷ 1 4/3
y = 9

x+ y = 21
x + 9 = 21
x + 9 - 9 = 21-9
x = 12

Check
3x =4y
3(12) = 4(9)
36=36

Answer Link

Otras preguntas

Lactic acid buildup during respiration is the result of _____. aerobic glycolysis anaerobic glycolysis Krebs cycle electron transport

Genetic information is organized on structures called A. lysosomes. B. chromosomes. C. ribosomes. D. bacteriophages.

Which word is the indefinite pronoun in this sentence? Jason called to us from the other room, saying, "Hey, everybody, come look at her dog." a. us b. her c.

the square of a sum of six and a number

Rational number between 1/8 and 1/4

Write 0.87 as a fraction in simplest form.

The carbon containing molecule found in the atmosphere that is often released by respiration is __________.

How did the scientific revolution compare with developments in science in other societies during and before the early modern period

in Rome what was one way you could have wealth and power?

whats the next number 3 6 4 8 6 12 10