Answer:
$0.04/lb
Step-by-step explanation:
Cost per lb for the 3 lb package is $7.80/(3 lb), or $2.60/lb)
Cost per lb for the 1/2-lb package is $1.28 / [(1/2) lb], or $2.56.
The difference in cost per pound is $2.60 - $2.56, or $0.04/lb
Is there more to the question?
A quadrilateral has four sides
Answer:
=8
Step-by-step explanation:
2²×2⁴÷2³
=2^2x2^{4-3}
=2^{2+4-3}
=2^3
=8
I hope this helps!
Like usual, we can solve this question using an equation. Let’s assume that John’s age is x, and his sister’s age is y.
x = 2y
To figure out John’s age, we need to know his sister’s age. He’s 2 times older than his sister.
x + y = 27
The sum of their ages is 27, and we can substitute the value of x here to figure out y.
2y + y = 27
We can now simplify this, and get y by itself.
3y = 27
Now, we can divide by 3 to get the y by itself.
y = 9
We now know that John’s sister is 9.
Now, using our original equation, we can substitute in the value of y.
x = 2(9)
We can simplify this.
x = 18
John’s age is 18!
Hope this helps.
