Please help for 3. And 4. !

Suppose that during the past year the price of a laptop computer fell from 2950 to 2450. During the same time period consumer sa

Semmy [17]

Answer:

The price of elasticity of demand is 2.59

Step-by-step explanation:

* Lets explain how to solve the problem

- During the past year the price of a laptop computer fell from

$2950 to $2450

- During the same time period consumer sales increased from

430000 to 619000 laptops

- We need to find the price of elasticity of demand

- The rule of price elasticity is:

price elasticity = percentage of change in the quantity ÷

percentage of change in price

* Lets calculate the percentage of change in quantity and the

percentage of chance in price

∵ The percentage of increasing of quantity = (new - old)/old

∵ New = 619000 and old = 430000

∴ The percentage of increasing of quantity =

$\frac{619000-430000}{430000}*100=43.95$ %

∵ The percentage of decreasing of price = (old - new)/old

∵ New = $2450 and old = $2950

∴ The percentage of decreasing of price =

$\frac{2950-2450}{2950}*100=16.95$ %

- Lets substitute these values in the equation above

∴ Price of elasticity of demand = 43.95% ÷ 16.95% = 2.59

* The price of elasticity of demand is 2.59

7 0

4 years ago

Jerome is cooking dinner. He needs 8 ounces of broccoli for each person.

Serga [27]

Due to the fact he does not know how many people are attending, you would represent the people value with a variable. Because we know he's given 8 ox. per person, you would need to write the expression as 8x.8 to represent the ox. needed and the x representing the people.

Divide 32 by 8 to see how many people he can serve,
32/8=4

4 0

4 years ago

Read 2 more answers

Determine the measure of the missing angles. Show your work! Be ready to discuss your answer.

soldier1979 [14.2K]

For a.

Since there are already two angles given for the triangle, we can measure the last angle using this formula:

90 + 55 + a = 180

Now solve for "a".

90 + 55 + a = 180

145 + a = 180

a = 180 - 145

a = 35°

For b.

From the picture above, the two triangle's tip are touching and having to form vertical angles. This means that the angles are congruent to each other.

Now that we have two angles in the second triangle(35 and 120), we can use the same formula:

35 + 120 + b = 180

Now solve for "b":

35 + 120 + b = 180

155 + b = 180

b = 180 - 155

b = 25°

3 0

3 years ago

Read 2 more answers

Use an area model to solve the equation 391 × 41=

Ad libitum [116K]

The answer is 16,031.

Hope this helps! ;)

8 0

4 years ago

Read 2 more answers

A 12-m ladder is leaning against a wall.

Len [333]

Answer:

Step-by-step explanation:

Use Pythagorean's Theorem for a right triangle. Your best bet when learning/visualizing word problems is to draw a picture, then learn how to visualize in your head over time.

$3^2+x^2=12^2\\9+x^2=144\\x=\sqrt{135}$

The radical can be further simplified because 135 is the product of 9 and 15. 9 has a perfect root of 3.

$x=3\sqrt{15}$ meters or 11.62 meters

7 0

3 years ago