Question
The product of two numbers is 50. If you divide the larger number by the smaller number
you get 2. What are the numbers?
you get 2. What are the numbers?
Answers
x*y=50
x/y=2
10*5=50
10/5=2
x/y=2
10*5=50
10/5=2
equation #1 : xy = 50
equation #2 : x/y = 2 ---> x = 2y
sub #2 into #1
2y(y) = 50
y^2 = 25
y = ± 5
if y = 5 then x = 10
if y = -5 then x = -10
to the two numbers are 10,5 OR -10,-5
equation #2 : x/y = 2 ---> x = 2y
sub #2 into #1
2y(y) = 50
y^2 = 25
y = ± 5
if y = 5 then x = 10
if y = -5 then x = -10
to the two numbers are 10,5 OR -10,-5