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sladkih [1.3K]
3 years ago
6

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

Mathematics
2 answers:
Julli [10]3 years ago
7 0

Answer:

because why not

Step-by-step explanation:

allochka39001 [22]3 years ago
7 0

Answer:

We will cover Addition and Subtraction in one go, as they are the same method. Before we add or subtract, the rational numbers should have the same bottom number (called a Common Denominator).

Step-by-step explanation:

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Which of the following is the correct factorization of the polynomial below?
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Answer:2(x-3)2

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3 years ago
URGENT! I will brainlist the correct first answer
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2 years ago
The sum of the digits of a two-digit number is 5. If the number is multiplied by 3, the result is 42. Write and solve a system o
Elenna [48]
A two digit number has a tens digit and a ones digit.
Let's say x = tens digit and y = ones digit

"The sum of the digits is 5"
x + y = 5

The next phrase is "the number multiplied by 3 is 42" but we need to represent the number using the digits. So they need to be multiplied first by their place value and added together. [Example: 34 = 3(10) + 4(1)]

The number is: 10x + y
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The system of equations: (two equations for two unknowns)
x + y = 5
30x + 3y = 42

Then you can use substitution or elimination to combine and solve.
I'll use elimination, multiply the entire top equation by -3 and add the equations together. y will cancel out

-3x - 3y = -15
30x + 3y = 42
------------------
27x + 0 = 27
x = 1

then plug x = 1 into either equation to find y

1 + y = 5
y = 4

remember the x and y represent digits so the number xy is 14
6 0
3 years ago
On a skiing trip there are five people but only three pairs of skis how many different groups of three could ski
____ [38]
10 different groups can ski.

This is a combination of 5 items taken 3 at a time:
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3 0
3 years ago
(-5, -11) and (-2, 1)
irinina [24]

Answer:

the answer is 0 because it 3 negative number

8 0
3 years ago
Read 2 more answers
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