nattt
nattt nattt
  • 10-05-2016
  • Mathematics
contestada

Help on number 22 using elimination of addition and subtraction.

Help on number 22 using elimination of addition and subtraction class=

Respuesta :

Madhavi598
Madhavi598 Madhavi598
  • 22-05-2016
let english = x
farsis be y
acc. question
x=78y
or x-78y=0--------------------1 eq 
also 
x+y=130 ------------------ 2 eq.
from 1 and 2
x-78y=0
x+y=130
on substracting
-79y= -130
y = 130/79
1.7 approx
=> x= 78*1.7
x= 132.6
hence english speaking= 132.6
farsis speaking = 1.7

Answer Link

Otras preguntas

there are 14 boys and 16 girls in Kayla's class. what is the ratio of girls to the total number of students in the class?. write the ratio in 3 ways.
what led of founding confucianism?
Given the following strand of DNA, what is the complementary strand? A T G C G T A T
6. How many moles are in 25g of potassium?
what is a example of euphemism in the song " 7 years - lukas graham " ​
Can someone give me an example of substitution
I need to write a paragraph in drumline but I dont know what to to put for the introduction Topic: Why is it important that musician understand how to read musi
100 points and brainlist An author claims that "zoos do more good than harm." The author provides the following as support for the claim: Without zoos, there ar
Give me a meme foto and this 20 p are for you
Copper carbonate decomposes to make _____________ oxide and _____________ dioxide