The sum of two numbers are 90. If 1 exceeds the number by 10, find the numbers...
Answers
Answer with Step-by-step explanation:
for example:
Sum of two numbers is 95. If one number exceeds the other by 15. Find the number?
Let the first number be x
second number be (x+15) // one exceed other by 15 //
sum of the number is given by x+(x+15) = 95
x+x+15=95
2x+15 = 95
2x =95-15
2x = 80
x=80/2
x =40
first number x=40, second number x+15 = 40+15= 55
The numbers are 40 and 55.
Now u may try to find ur answer by reffering to the example given...
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Answer:
50, 40
Step-by-step explanation:
By the first condition
x+y=90...1)
By the second condition
x-y =10...2)
Adding equation 1)and 2)
x + y =90
x - y = 10
_______
2x = 100
x = 50
put x = 50 in equation 1)
x + y = 90
50 + y =90
y = 90 - 50
y = 40
Therefore, (x, y)= (50, 40) are the numbers