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xz_007 [3.2K]
2 years ago
13

Why is calculating 10% of an amount easier than calculating 17% of the amount?

Mathematics
1 answer:
svet-max [94.6K]2 years ago
7 0

Answer:

It is easier to calculate 10% of an amount because all you have to do is move the decimal point: 10% of $39 is $3.90.

Hope this helps! Please mark as brainliest when you are able to.

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Question 9 of 10 Which of the following statements must be true about this diagram? Check all that apply. 10 A. x+y=w B. W> Y
Nataliya [291]

Answer:

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8 0
2 years ago
a product code consists of picking a two-digit number (including 00) and 3 not necessarily distinct letters. How many codes are
Brrunno [24]

Answer:

The codes are:

N,_,_,_

Where each _ represents a possible letter, out of 26.

And N is a number of two digits.

So in total we can think that we have 5 empty slots.

_,_,_,_,_

In the first slot we can put any digit between 0 and 9, so here we have 10 options.

In the second slot we can put any digit between 0 and 9, so here we have 10 options.

In the third slot we can put any letter, so here we have 26 options (and exactly the same for the fourth and fifth slots)

The total number of different combinations is equal to the product of the number of options for each slot.

C = 10*10*26*26*26 = 1,757,600

Now, if we want to have at least one nine, we can fix it in the first slot.

Then we have:

in the first slot we have only one option (the 9)

In the second slot we can put any digit between 0 and 9, so here we have 10 options.

In the third slot we can put any letter, so here we have 26 options (and exactly the same for the fourth and fifth slots)

The number of combinations is:

C = 1*10*26*26*26 = 175,760

But we also should consider the case where we fix the 9 in the second slot, so the actual number of combinations is twice the number above.

C = 2*175,760 = 351,520

The probability that the code does not contain the number 9.

Now in the first slot we have only 9 options, all the whole numbers between 0 and 8.

The same for the second slot, 9 options.

For the third, fourth and fifth slot is the same as before.

The total number of combinations is:

C = 9*9*26*26*26 = 1,423,656

4 0
3 years ago
Which set of coordinates does NOT represent a function?
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The one with (1, 10) and (1, 15) because in a function the same x value cannot equal different y values
7 0
3 years ago
line 1 passes through (2,2) and (5,5). line 2 passes through (3,-6) and (-5,2). Are the lines parallel or perpendicular?
Gelneren [198K]
Find the slope of the first line, that is the difference of the y’s over the difference of the x’s. This way: 2-5/2-5=-3/-3 which equals 1
Now find the slope of the second line 2-(-6)/-5-3
=8/-8
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The slopes are opposite reciprocal ( you could also say that the product of the 2 slopes equals -1) therefore the lines are perpendicular.
3 0
3 years ago
Round the answer to the nearest hundredth.
aniked [119]
Answer is 5.85 see picture

5 0
2 years ago
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