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Tanya [424]
3 years ago
10

Under what conditions is the total cell phone bill the same for service from either company? a. the cost is $23.95 for both comp

anies for 25 additional minutes c. the cost is $64.95 for both companies for 500 additional minutes b. the cost is $28.95 for both companies for 50 additional minutes d. the cost is $32.95 for both companies for 50 additional minutes
Mathematics
2 answers:
shtirl [24]3 years ago
7 0
The answer is C. Hope this helps :)
koban [17]3 years ago
7 0
Letter C. Is the correct answer (:
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Please show work if you do, ( and get it right) I will make you brainliest!!!
DerKrebs [107]

Answer:

The percentage increase in bird population in the second years is 4%  .

Step-by-step explanation:

Given as :

During two years, the population of birds of an island became 7 times more than before.

The the percentage increase in first year = = r_1 =40%

Let The percentage increase in second year =  r_2 = r%

So, According to question

The initial population of bird = x

The increase population of bird =7 times before = 7 x

Now,

The increase population of bird = initial population of bird × (1+ \dfrac{r_1}{100}) ×  (1+ \dfrac{r_2}{100})

Or, 7 x = x × (1+ \dfrac{40}{100}) ×  (1+ \dfrac{r}{100})

Or, \dfrac{7 x}{x} = 1.4 ×  (1+ \dfrac{r}{100})

Or, 7 = 1.4 ×  (1+ \dfrac{r}{100})

Or, \dfrac{7 }{1.4} = (1+ \dfrac{r}{100})

Or, 5 = (1+ \dfrac{r}{100})

Or, (1+ \dfrac{r}{100}) = 5

Or, \dfrac{r}{100} = 5 - 1

Or,  \dfrac{r}{100} = 4

∴ r = 4 × 100

I.e r = 400

so, The percentage increase = r% = 4

Hence The percentage increase in bird population in the second years is 4%  . Answer

3 0
3 years ago
Gwen volunteered to work at the ticket booth for her school's Halloween carnival. The chart below gives the number of hours Gwen
baherus [9]
The answer should be D if I’m wrong
4 0
3 years ago
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Rationalize the denominator of square root of negative 9 over open parentheses 4 minus 7 i close parentheses minus open parenthe
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A calculator shows
\dfrac{\sqrt{-9}}{(4-7i)-(6-6i)}=\dfrac{3i}{-2-i}=-3\cdot\dfrac{i(2-i)}{2^2+1^2}\\\\=\dfrac{-3-6i}{5}
8 0
3 years ago
The statement p → q represents "If a number is doubled, the result is even.” Which represents the inverse?
diamong [38]
The inverse of p\implies q is \neg p\implies\neg q. (This eliminates B and D)

p\implies q translates to "if p, then q". This means the answer must be A.
4 0
3 years ago
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Total consumption of fruit juice in a particular country in 2006 was about 2.05 billion gallons. The population of that country
Maslowich

Answer:

4.1 gallons per person

Step-by-step explanation:

The total consumption of fruit juice is 2.05 billion

The total population is 500 million

Therefore the average number of gallons fruit juice consumed per person can be calculated as follows

=total consumption/total population

= 2,050,000,000/500,000,000

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