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Softa [21]
3 years ago
5

10. (SLO) Evaluate the expression for the given values of the variables: 3x + 8y - 7 if x= 2 and y = 6

Mathematics
1 answer:
Naily [24]3 years ago
7 0
For this question, you would simply plug in a 2 wherever you see an x and plug in a 6 wherever you see a y. Then you simplify the expression.

3(2) + 8(6) - 7
6 + 48 - 7
47
Hope this helps!
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The data below represent a demand schedule.
ser-zykov [4K]

By using the midpoint approach, the price elasticity of demand between each of the given prices are:

  1. 5.50
  2. 2.25
  3. 1.17
  4. 0.63

<h3>What is the price elasticity of demand?</h3>

The price elasticity of demand measures the responsiveness of the quantity demanded by a consumer with respect to a specific change in price of the product, all things being equal (ceteris paribus).

By using the midpoint approach, the price elasticity of demand between each of the given prices is given by:

Price elasticity of demand = (Q₂ - Q₁)/[(Q₂ + Q₁)/2]/(P₂ - P₁)/[(P₂ + P₁)/2]

Price elasticity of demand = (15 - 5)/[(15 + 5)/2]/(25 - 30)/[(25 + 30)/2]

Price elasticity of demand = 1/-0.1818

Price elasticity of demand = 5.50.

<h3>Part B.</h3>

Price elasticity of demand = (Q₂ - Q₁)/[(Q₂ + Q₁)/2]/(P₂ - P₁)/[(P₂ + P₁)/2]

Price elasticity of demand = (25 - 15)/[(25 + 15)/2]/(20 - 25)/[(20 + 25)/2]

Price elasticity of demand = 0.5/-0.2222

Price elasticity of demand = 2.25.

<h3>Part C.</h3>

Price elasticity of demand = (Q₂ - Q₁)/[(Q₂ + Q₁)/2]/(P₂ - P₁)/[(P₂ + P₁)/2]

Price elasticity of demand = (35 - 25)/[(35 + 25)/2]/(15 - 20)/[(15 + 20)/2]

Price elasticity of demand = 0.33/-0.2857

Price elasticity of demand = 1.17.

<h3>Part D.</h3>

Price elasticity of demand = (Q₂ - Q₁)/[(Q₂ + Q₁)/2]/(P₂ - P₁)/[(P₂ + P₁)/2]

Price elasticity of demand = (45 - 35)/[(45 + 35)/2]/(10 - 15)/[(10 + 15)/2]

Price elasticity of demand = 0.25/-0.4

Price elasticity of demand = 0.63.

Read more on price elasticity here: brainly.com/question/24384825

#SPJ1

3 0
2 years ago
What is the surface area of a square pyramid if the base is 5 and the hight is 7
Kryger [21]

Answer:99.33

Step-by-step explanation:

5 0
4 years ago
You purchased 8 gal of paint and 3 brushes for 152.5. the next day, you purchased 6 gal of paint and 2 brushes for 113. how much
kotegsom [21]
Let the price of paint be x and the price of brush be y

8x + 3y = 152.5 ------------ (1)
6x + 2y = 113 --------------- (2)

(1) x 2 :
16x + 6y =305 -------------(1a)

(2) x (3) :
18x + 6y = 339 -------------(2a)

(2a) - (1a) :
2x = 34
x = 17 ---------- sub into (2)
6(17) + 2y = 113
102 + 2y = 113
2y = 113 - 102
2y = 11
y = 5.5


x = $17, y = $5.50

Each gallon of paint costs $17 and each brush costs $5.50




3 0
3 years ago
Two students, A and B, are working independently on homework (not necessarily for the same class). Student A takes X = Exp(1) ho
OleMash [197]

Answer:

a) The CDF of X/Y is calculated as:

F_{z} (\zeta) = \frac{\zeta}{\zeta + 2} for 0 < \zeta < \infty  

F_{z} (\zeta) = 0 for \zeta \leq 0

Note: Z = X/Y

b) Probability that A finishes before B = 1/3

Step-by-step explanation:

For clarity and easiness of expression, this solution is handwritten and attached as a file. Check the complete solution in the attached file.

7 0
4 years ago
Can some body help me <br> Is this right triangle or not a right triangle
koban [17]

Answer:

yeah its a right triangle

Step-by-step explanation:

6 0
4 years ago
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