Answer:
The cost of per kilogram of salami is = $9.1
Step-by-step explanation:
Given:
Hailey paid $13 for kg of sliced salami.
To find cost per kilogram of salami.
Solution:
We will apply unitary method to find per kilogram cost of salami.
If kg of salami costs = $13
Then 1 kg of salami will cost in dollars will be =
In order to divide by mixed numbers, we will convert mixed numbers to fractions.
⇒
⇒
In order to divide by fractions we will take reciprocal of divisor and then multiply.
⇒
⇒
⇒
⇒
Thus, cost of per kilogram of salami is = $9.1
Answer:
h = 3 cm
Step-by-step explanation:
The area (A) of a triangle is calculated as
A = bh ( b is the base and h the height )
Here A = 7 = ← expressed as an improper fraction
and b = 5 = , thus
× × h = , that is
h =
Multiply both sides by 8 to clear the fractions
21h = 63 ( divide both sides by 21 )
h = 3
Answer:
(8x-5y) (8x+5y)
Step-by-step explanation:
64x^2−25y^2
This is the difference of squares
a^2 - b^2 = (a-b) (a+b)
Let 64 x^2 = a^2 Then a = 8x
Let 25 y^2 = b^2 then b = 5y
64x^2−25y^2 = (8x-5y) (8x+5y)