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3 years ago

13

In what ways is it useful to develop an algorithm for adding and subtracting rational numbers?

2 answers:

Arada [10]3 years ago

7 0

Answer:

To add or subtract some rational numbers, you have to change the rational numbers so they have a common denominator. When you have a common denominator, you can then go on with the addition or subtraction on the numerator part.

Oksi-84 [34.3K]3 years ago

4 0

Answer:

To add or subtract these rational numbers, you first need to change your rational numbers so that they share a common denominator. Once you have a common denominator, you can then go ahead with the addition or subtraction of just the numerator part

Step-by-step explanation:

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-3 times b is smaller than -33

Usimov [2.4K]

Answer:

l think so because -3 if you add a 0 (-30) its smaller than -33

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3 years ago

A number in expanded form is shown. 4×1+3×1/100+9×10+5×1/10

77julia77 [94]

The real answer is going to be 23.5

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3 years ago

IT TUVW is reflected across the line y = .x, what are the coordinates of V'?

Kay [80]

Answer:

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Step-by-step explanation:

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2 years ago

In the following exercise, does the problem involve permutations or combinations? Explain your answer. One hundred people purc

Blizzard [7]

Answer: Permutation is involved , since order of prizes matters.

The number of different ways the prizes can be awarded =95060

Step-by-step explanation:

Given : Total number of people purchase lottery tickets =100

The number of prizes = 3

Since each prize can be claimed by only one person.

So order matters here, there for we use permutations .

The number of permutations of n objects taken m at a time is given by :-

$^nP_m=\dfrac{n!}{(n-m)!}$

Then, the number of different ways the prizes can be awarded :-

$^{100}P_{3}=\dfrac{100!}{(100-3)!}=\dfrac{100!}{97!}\\\\=100\times98\times97=950600$

0 0

3 years ago

GEOMETRY URGENT HELP NEEDED

son4ous [18]

First we find the measurement of dark dot .

ANd for that we have to use the formula of the angle formed by the intersection of chord .

Let the dark dot be t.

So we have

$t =\frac{1}{2} (96+66)=81$

t and z are linear pair and sum of angles of linear pair =180 degree.

So we get

$t+z=180 \\ 81+z =180 \\ z = 180-81 =99 degree$

4 0

3 years ago