Answer:
All you need to do is make sure the first expression is solved for y (which it is), and then substitute it into the second expression in place of any occurrences of y:
given the second expression:
x - y = 1
We'll replace y with it's value in the first expression:
x - (y) = 1
x - (5 - 2x) = 1
Now we can expand the resulting equation:
x - 5 + 2x = 1
So <em>neither</em> of the answers provided are correct.
You can then solve for x:
x - 5 + 2x = 1
x - 5 + 5 + 2x = 1 + 5
x + 2x = 6
3x = 6
3x/3 = 6/3
x = 2
After that, you can find y by plugging x into either of the two original equations:
y = 5 - 2x
y = 5 - 2(2)
y = 5 - 4
y = 1
You start by changing the fraction into a decimal.
4.5 lb. of ground beef= 16.11
6.25 lb. of ground turkey= 18.50
Next, you divide the amount they cost by the pounds to get the price per pound.
16.11÷4.5= 3.58
18.50÷6.25= 2.96
So, a pound of beef is $3.58, and a pound of turkey is $2.96.
The turkey is 62 cents less than the beef per pound.
That means the turkey is a better buy! :)
(Have a good day! :))
Answer:
Scalene is the right option.
Step-by-step explanation:
A scalene triangle has all its sides of different lengths.
I don't why you put -+ but I will go ahead and assume that it is -2.
4-+6
I think it is saying 4 - positive 6 but I'm guessing.
