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4 years ago

(7) Math word problem Pleas help!

Mathematics

1 answer:

valkas [14]4 years ago

5 0

The last one i think is correct, hope i could help??

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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

Eliminate the parameter to find a Cartesian equation of the following curve: x(t) = cos^2 (6t), y(t) = sin^2(6t) Choose the answ

ki77a [65]

Answer:

y(x) = 1 - x

Step-by-step explanation:

Given the two parametric equations:

$x(t)=cos^{2}(6t)$ ---(1)

$sin^{2}(6t)$ ----(2)

We can add eq (1) and eq (2) and consider the trigonometric identity:

$cos^{2}(6t)+sin^(6t) = 1$

so,

$x+y=1$

in other way we can express this like:

[tex] y(x)=1-x [tex].

3 0

4 years ago

4 spoons and 3 forks cost $15 4 spoons and 1 fork cost $13 how many do the forks cost?

Wewaii [24]

Let's say that s=spoons and f=forks.

According to this, we can say that:

{4s+3f=15
{4s+f=13

This is a system.

We can then use elimination to solve and isolate the variable:
(4s-3f=15)
- (4s+f=13)

We can then subtract and conclude that:
-4f=2
-f=1/2
f=-1/2

8 0

3 years ago

Find the measure of the angle below

lisov135 [29]

Answer is 10°

hope it will help u

8 0

3 years ago

What is the difference in the number of calories in a

Aleonysh [2.5K]

Answer:

C)265

Step-by-step explanation:

To find the median you list all the numbers in order from least to greatest. The number in the middle is the median.

In this case there are two middle number so you have to add them together then devide them by 2.

700, 740, 810, 900, 1050, 1120.

810 + 900 = 1,710

1,710/2 = 855.

Your median is 855.

To find the difference you just subtract the two numbers.

1,120-855= 265.

7 0

3 years ago

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