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WARRIOR [948]
3 years ago
12

A cellular telephone company charges 0.30 per minute or fraction thereof. If, Miguel, a customer of this company, talks on his c

ell phone for 23.47 minutes, what’s will his charges be for that phone call?

Mathematics
1 answer:
Stella [2.4K]3 years ago
8 0
____________________________________

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The population of a place increased to 54,000 in 2003 at a rate of 5% per annum. what would
svlad2 [7]

Answer:

The population in 2005 is 59,535 people.

Step-by-step explanation:

Annum means annually or yearly. We assume the rate has been consistent. To calculate percentage, take the percent in decimal form. 5% is 0.05 (like 17% is 0.17, and 50% 0.5). 5% is actually 5 hundredths of a number. Multiply this by the number you want the percentage of. 54,000*0.05=2,700. This is how much the population grows from 2003 to 2004.

There is a very common mistake people make after this, which is simply doubling that number and adding to the population. This is incorrect because if it grows 5% yearly, the yearly population CHANGES. The question would change if it were 2004 to 2005. Ask your teacher for clarification if this sounds wrong (if it is, do what I said above, the answer would be 59,400 people).

So, the population in 2004 is 54,000+2,700=56,700. Now, find 5% of the population in 2004 using the same method as before. 56,700*0.05=2,835. Add the growth to the pervious population. 56,700+2,835=59,535.

The population in 2005 is 59,535 people.

7 0
2 years ago
A company that manufactures toothpaste is studying five different package designs. Assuming that one design is just as likely to
Vesna [10]

Answer:

20%

Step-by-step explanation:

p(outcomes)=#of favourable outcomes/#of possible outcomes

=1/5

=0.2

=20%

7 0
3 years ago
Why does -30 - - 50 equal 20? What steps are being done?
ale4655 [162]
Two negatives equal a positive, so its just like subtracting 50 and 30, but your answer will be a positive.
6 0
3 years ago
Read 2 more answers
Anyone know how to do these?
Allushta [10]

Answer:

1.4x10^-7

Step-by-step explanation:

For Problem 6

First we would divide the first numbers together so 7.84 / 5.6 = 1.4

We then would add the exponenites together so -3+-4=-7

Leading our awnser to be 1.4x10^-7

6 0
3 years ago
Are 2/7 and 6/21 equivalent ratios
ra1l [238]
6 / 2 = 3
21 / 7 = 3

Yes, 2/7 and 6/21 are equivalent ratios.  The second number is simply the first number tripled.  
5 0
3 years ago
Read 2 more answers
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