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Help plz 5 question math assignment
#1. the ratio of two numbers is 1.75 the difference of the numbers is 12 find the two numbers
#2 the ratio of two numbers is 5/22 the product of the numbers is 440 find all possible pairs of numbers
#3 the ratio of two numbers is 11:12 the sum of the numbers is 207 find the two numbers
#4 the ratio of two numbers is 2 to 1 the sum of the numbers is 9/4 find the two numbers
#5 the ratio of two numbers is 3 to 4 the difference of the number is -1.9. find the two numbers



I need an explanation for these how to do it step by step plz

Respuesta :

ZavierL
_Brainliest for helping step by step!
#1. 
7:4 
Difference 12
Let the no. be X and Y, 
7Y=4X , Y = 4/7 X
Y-X = -12 
4/7X-X=-12 , 
X = 28 , Y =16

#2 
5 : 22 
X * Y = 440  
22X = 5Y
(5/22)Y*Y=440 Y =±√1936 =±44 Hence X =±10
Pair : 44 and 10, -44 and -10 

#3 
11:12 
X+Y = 207
12X=11Y
11/12 Y+Y = 207
Y = 108, X = 99

#4  
2:1 , 
X+Y = 9/4
2Y = X
2Y + Y = 9/4
Y= 3/4, X = 6/4

#5
  
3:4
X-Y = -1.9
4X=3Y 
3/4 Y - Y = -1.9
Y = 5/38 
X = 10/57

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