Answer
• A. Equation: 25(5 + x) = 325
,
• B. Answer: 8 dogs
Explanation
Given
• Charge to wash a dog: $25.
• She washed 5 dogs on Saturday and then some more on Sunday.
• She made $325 for the weekend.
Procedure
She charges $25 per wash, she made $325 for the weekend, and we know that on Saturday she washed 5 dogs, but we don't know how many she washed on Sunday. Thus, we have to build an equation in which the number of dogs washed on Sunday is represented by x (as we do not know the real number).
Considering that the total money made has to be equal to the multiplication of the charge times the dogs washed, the equation is:
Then, we have to solve for x to know how many dogs did she wash on Sunday.
0. Multiplying the parenthesis
<em>2. Subtracting 125 from both sides of the equation</em>
<em>3. Dividing both sides of the equation against 25</em>
It would be 2 since that would give you the trio mail if expanded
Answer:
ok
Step-by-step explanation:
Answer:
1.
2.
Step-by-step explanation:
The given demand equation is
where p is the price (in dollars) per quarter-chicken serving and q is the number of quarter-chicken servings that can be sold per hour at this price.
Part 1 :
We need to Express q as a function of p.
The given equation can be rewritten as
Using the properties of exponent, we get
Therefore, the required equation is .
Part 2 :
Differentiate q with respect to p.
Formula for price elasticity of demand is
Cancel out common factors.
Using the properties of exponents we get
Therefore, the price elasticity of demand is -2/3.