Question
I'm thinking of two numbers. The first number is three times the second. The second number is five less than two times the first. What are my numbers?
Answers
Reiny
Easy to translate from English to Math.
Let the 2nd number be x and the first one y
"The first number is three times the second"
y = 3x
"The second number is five less than two times the first"
x = 2(3x) - 5
-5x = 5
x = 1
then y = 3
The first number is 3 and the second is 1
check:
Is the first number three times the second? YES
second number: 1
two times the first: 6
is 1 less than 6 by 5 ? YES
Let the 2nd number be x and the first one y
"The first number is three times the second"
y = 3x
"The second number is five less than two times the first"
x = 2(3x) - 5
-5x = 5
x = 1
then y = 3
The first number is 3 and the second is 1
check:
Is the first number three times the second? YES
second number: 1
two times the first: 6
is 1 less than 6 by 5 ? YES