All categories

3 years ago

If the regular price of an item is X dollars, what is the discount price in dollars?

Mathematics

2 answers:

saveliy_v [14]3 years ago

8 0

Answer:

First, we have to know the discount percentage.

Let's say that is 20% off, this would be in decimal number 0.20.

Now, if the regular price is $\$X$ , then the dollars discounted are

$(0.20)(\$X)$

And the final price is

$\$X-\$0.20X=\$0.80X$

Which means that the final price is 80% of the regular prices.

Now, for a general case, let's call $Y\%$ the percentage discount, in this case, the final price would be

$\$X-\$(0.Y)X=\$(1-0.Y)X$

Alexus [3.1K]3 years ago

4 0

Answer:

Step-by-step explanation:

x/regular price=y

1-y=discountx100

So, say you get a pair of shoes that are normally $100 and you pay 75. 75/100=.75. 1-.75=.25x100=25. This means you got a 25% discount.

You might be interested in

The coffee pub has cans of coffee that weigh 4 4/5 pounds each. The pub has 8 1/2 cans of coffee left. What is the total weight?

tankabanditka [31]

4.8 x 8.5 = 40.8 lbs total
quick mafs

6 0

3 years ago

Choose the option that best completes the sentence.

kirza4 [7]

The amount of time it takes to finish a race might be a function of: A. the length of the race.

<h3>How to find the relationship between distance and time?</h3>

We know that formula for distance is;

Distance = Speed * time

Now, we can see clearly that distance covered is directly proportional to the time taken. Thus, the longer the distance, the more the time taken to finish the race.

Thus, we can conclude that the amount of time it takes to finish a race might be a function of:

A. the length of the race.

Read more about Distance-time relationship at; brainly.com/question/14463409

#SPJ1

4 0

2 years ago

Which ordered pair is a solution of the equation ?

Gekata [30.6K]

Answer:

C. Both of the above answers

Step-by-step explanation:

13 = -6(-2) + 1

13 = 12 + 1

13 = 13

7 = -6(-1) + 1

7 = 6 + 1

7 = 7

7 0

3 years ago

The gypsy moth is a serious threat to oak and aspen trees. A state agriculture department places traps throughout the state to d

k0ka [10]

Part A:

From the central limit theorem, since the number of samples is large enough (up to 30), the mean of the the mean of the average number of moths in 30 traps is 0.6.

Part B:

The standard deviation is given by the population deviation divided by the square root of the sample size.

$standard \ deviation= \frac{\sigma}{\sqrt{n}} = \frac{0.4}{\sqrt{30}} = \frac{0.4}{5.477} =0.073$

Part C:

The probability that an approximately normally distributed data with a mean, μ, and the standard deviation, σ, with a sample size of n is greater than a number, x, given by

$P(X\ \textgreater \ x)=1-P(X\ \textless \ x) \\ \\ =1-P\left(z\ \textless \ \frac{x-\mu}{\sigma/\sqrt{n}} \right)$

Thus, given that the mean is 0.6 and the standard deviation is 0.4, the probability that <span>the average number of moths in 30 traps is greater than 0.7</span> given by:

$P(X\ \textgreater \ 0.7)=1-P(X\ \textless \ 0.7) \\ \\ =1-P\left(z\ \textless \ \frac{0.7-0.6}{0.073} \right)=1-P(z\ \textless \ 1.369) \\ \\ =1-0.91455=\bold{0.0855}$

7 0

4 years ago

What must you assume when you use a rate for a prediction? (Please Help!! I'm in 6th grade and this is math.)

murzikaleks [220]

Answer:

For anything to do with force you have to assume an even amount of force is spread out evenly. But for things like growing rate you have all those variables so you can't assume a constant growing rate like acceleration.

Step-by-step explanation:

hope it helps (:

3 0

3 years ago