The difference between two numbers is 80. One of them is six times smaller than the other. find these numbers.
April 28, 2021 | education
| 1. Let the first number be x, and the second number y. According to the condition, the difference between these numbers is 80. Let’s compose the first equation:
x – y = 80;
2. According to the condition, the second number is equal to y, 6 times less than the first, the number is equal to x. Let’s make the equation:
x = 6y;
3. Let’s compose a system of equations and solve it by the substitution method. To do this, we substitute the second equation into the first:
{x – y = 80;
{x = 6y;
6y – y = 80;
5y = 80;
y = 80/5;
y = 16;
Then, we find the second number by substituting the value of y:
x = 6 * 16 = 96;
Answer: x = 96, y = 6.
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