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kompoz [17]
3 years ago
11

Which functions are the same as their inverse functions

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
8 0

Answer:

we need to so the functions

Step-by-step explanation:

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If copies cost .08 per copy but you buy a fuscount card for 7.50 and the copies are .05 how many copies will make it worth the d
timurjin [86]

Answer:

<u>The number of copies that will make it worth the discount card is 250.</u>

Step-by-step explanation:

1. Let's review the information provided to answer the question correctly:

Cost per copy without discount = US$ 0.08

Cost per copy with discount = US$ 0.05

Cost of discount card = US$ 7.50

2. How many copies will make it worth the discount card?

For finding out this number of copies, we will use the following equation:

x = Number of copies that will make it worth the discount card

0.08x = 0.05x + 7.50

0.03x = 7.50 (Like terms)

3x = 750 (Multiplying by 100 at both sides)

x = 250 (Dividing by 3 at both sides)

<u>The number of copies that will make it worth the discount card is 250.</u>

Note: Same answer to question 14127203, answered by me today.

7 0
3 years ago
Write the word sentence as an equation. Then solve.
nekit [7.7K]

Answer:

Equation- p-6= -14

Answer- p=-8

Step-by-step explanation:

8 0
3 years ago
The sentence "two times the difference of -18 and 6 amounts to -48" written as an equation is ?
Gennadij [26K]
2 (-18 - 6) = -48

By order of operations (PEDMAS)  the parentheses are calculated first.
5 0
3 years ago
This is so hard please please help me
Zolol [24]

Answer:

50 is less than 889 × 27

what are you a 2nd grade

5 0
3 years ago
Read 2 more answers
The mean per capita income is 15,451 dollars per annum with a variance of 298,116. What is the probability that the sample mean
docker41 [41]

Answer: 0.5467

Step-by-step explanation:

Let X be the random variable that represents the income (in dollars) of a randomly selected person.

Given : \mu=15451

\sigma^2=298116\\\\\Rightarrow\ \sigma=\sqrt{298116}=546

Sample size : n=350

z-score : \dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}

To find the probability that the sample mean would differ from the true mean by less than 22 dollars, the interval will be

\mu-22,\ \mu+22\\\\=15,451 -22,\ 15,451 +22\\\\=15429,\ 15473

For x=15429

z=\dfrac{15429-15451}{\dfrac{546}{\sqrt{350}}}\approx-0.75

For x=15473

z=\dfrac{15473-15451}{\dfrac{546}{\sqrt{350}}}\approx0.75

The required probability :-

P(15429

Hence, the required probability is 0.5467.

3 0
3 years ago
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