A unit rate means for one, so in this case they mean for one pound of the horse feed which brand sells the highest. You would divide the cost into the number of pounds for each brand. Now, compare all the brands and see which one is highest.
Answer:
(a) Expanded form:
(b) The value of the expression: -21
Step-by-step explanation:
Given
Solving (a): The expanded form:
This means that we substitute the values of i from 1 to 4 in the above expression.
So, the expression becomes:
Solving (b): The value of the expression
To do this, we simply substitute the given values of X1, X2....... in the expression.
This gives:
So, the expression becomes:
Simplify each bracket
<em>Hence, the result of the expression is -21</em>
Answer:
Simplifying
6r + r + -5r = 0
Combine like terms: 6r + r = 7r
7r + -5r = 0
Combine like terms: 7r + -5r = 2r
2r = 0
Solving
2r = 0
Solving for variable 'r'.
Move all terms containing r to the left, all other terms to the right.
Divide each side by '2'.
r = 0
Simplifying
r = 0
Answer:
Formation of Elements: Protons + Neutrons combine to form the nucleus of an atom (basic unit of matter), electrons (- charge) orbit nucleus attracted to protons (+ charge)
Answer:
1/3
Step-by-step explanation:
4/5 + 3/15
We first find a common denominator which will be 15.
Multiplying the top and bottom of 4/5, we have 12/15
12/15 + 3/15 = 15/15 = 1
1 - 2/3 is 1/3
