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Sagot :
Answer:
x = 36; y = 9
Step-by-step explanation:
To solve this problem you need to set up two equations. The first equation comes from the first sentence "One number is 4 times another." This equation can be written as x = 4*y where x and y are the two numbers. The second equation comes from the second sentence "Their difference is 27." This equation can be written as x-y = 27. To find the numbers you need to rearrange one equation and plug it into the other.
Step 1: write equations
x = 4*y
x-y = 27
Step 2: rearrange
Not necessary here
Step 3: substitute in
x - y = 27
4y -y = 27
3y = 27
y = 9
Step 4: solve for x
x = 4*y
x = 4*9
x = 36
[tex]x[/tex] - one number
[tex]4x[/tex] - the other number
[tex]4x-x=27\\3x=27\\x=9\\\\4x=4\cdot9=36[/tex]
These numbers are 9 and 36.
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