Answer:
Step-by-step explanation:
here
Whenever a problem says "one number" and "another number" we can substitute x and y. for this we have x=2y+1 and xy=1. since we know the value of x (2y+1) we can substitute it for the other equation to get (2y+1)y=10. simplify to get 2y^2+y=10. from here you can do a few methods to solve this, but the simplest in my opinion is by factoring.
In order to factor it must be equal to 0, so we have 2y^2+y-10=0. We factor this and get y=5 (we also get y=-4 but it is an extraneous root). now we can plug that into either equation and find that x=2.
this means our two numbers are 5 and 2
Answer:
U=3
Step-by-step explanation:
Since 9*3=27, and 27-7=20, U=3.
Answer:
greatest common factor is 12xy² .
Step-by-step explanation:
16, 4x4 = 16 that's your 4x as many as red peppers and the red peppers is therefore 4 and 16+4 is an even 20
