WoahhBro4788 WoahhBro4788
  • 03-01-2018
  • Mathematics
contestada

The sum of two numbers is 1. three times the larger number plus two times the smaller number is 18. find the numbers

Respuesta :

kritter1
kritter1 kritter1
  • 03-01-2018
Let x be the larger number and y be the smaller number; 

x+y=1 <--- x=1-y 

3x+2y=18 

3(1-y)+2y=18 
3-3y+2y=18 
-y=18-3 
-y=15
y=-15 

x+y=1 
x-15=1 
x=1+15 
x=16 

Hope I helped :) 
Answer Link

Otras preguntas

4x-2y=14 y=1/2x-1 Solve the system of linear equations by substitution. Check your answer.
a antonym for biosphere
The type and age of rocks found in the mountain range are also found on another continent. What might this mean?
What does hemostasis mean?
a pine tree measured 40 and 1 over 2 feet tall. Over the next 7 and 1 over 2 years it grew to a height of 57 feet. During the 7 and 1 over 2 years, what was the
How many years does an apple tree live useful?
A youth ice hockey game has 3 periods that are each 20 minutes long. Colin plays 12 minutes each period. Which ratio shows Colin's playing time compared to the
How many years does an apple tree live useful?
Which is an example of a structural adaptation of a plant? A. plant moving toward light to increase photosynthesis B. roots responding to gravity to get to wa
what might be learned from an incorrect hypothesis