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seraphim [82]
3 years ago
15

What is the percent decrease on a dvd recorder that is marked down from $400 to $350

Mathematics
1 answer:
velikii [3]3 years ago
8 0
12.5% is the correct answer to this problem


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In the figure below, triangle ABC is similar to triangle PQR, as shown below:
lyudmila [28]
I think the answer is b
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This is a question I am needing help with
Solnce55 [7]

Answer:

D

Step-by-step explanation:

y intercept is b, so in the equation so far it is

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the slope is m, so

y=(-3)x+5

the answer is D.

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The quotient of a number and four increased by three.

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2 years ago
Determine whether the underlined numerical value is a parameter or a statistic. Explain your reasoning The average grade on the
Nat2105 [25]

Answer:

The correct option is F.

Step-by-step explanation:

A parameter is a single numerical value describing a certain characteristic of the entire population. It is computed using the population values. For example, population mean, population variance, etc.

A statistic is also a numerical value that defines certain characteristic of a sample. It is computed using the sample values. For example, sample mean, sample variance, etc.

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This mean value is a parameter because it is computed using the entire population of 50 students in the math class,i.e. all the population values were included in the calculation of mean 88.

Thus, the correct option is F.

3 0
3 years ago
The difference of two numbers is 0.77. If the larger number is increased 5 times, then the difference becomes 77. Find the numbe
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Let the two numbers are x and y

Let larger number = x

and smaller number = y

it means

x-y = 0.77

Now it says larger number is increased 5 times

So it now becomes 5x

So second equation becomes

5x -y =77

Now we have to solve these two equations

x-y = 0.77 and 5x-y = 77

multiply first equation by -1 and then add both equations

-x+y = -0.77

Now on adding we get

-x+5x +y -y = 77-0.77

4x = 76.23

Divide both sides by 4

x=19.0575

We get the larger number , now subtract 0.77 from this , we will get the smaller number

y=19.0575-0.77=18.2875

y=18.2875


Hence the larger number = 19.0575

Smaller number = 18.2875

8 0
3 years ago
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