All categories

1 year ago

Describe a way to check the correctness of a subtraction answer.

Mathematics

1 answer:

Tamiku [17]1 year ago

3 0

Step-by-step explanation:

Well in general, we can represent subtraction as: $x-y=z$

"z" represents the difference, and it really just represents x with y taken away. So if we were to "give back" this y value, we should get "x".

This means that: $z+y=x$

So one way to check, is adding the value that's being subtracted (y value) and the difference (z value), this should get you the value that is being subtracted from (x value). If you don't get the original value that's being subtracted from (x-value) then you know the answer you got is wrong.

You might be interested in

The total area of Rhode island is about 1.5x10^3

yarga [219]

Total are of Rhode Island = 1500

6 0

3 years ago

Find three consecutive integers such that that product of the first and third is one

Tema [17]

Answer:

n = the first

n + 1 = the 2nd

n + 2 = the 3rd

n(n + 2) - (n + 1) = 10(n + 2) + 1

n2 + 2n - n - 1 = 10n + 20 + 1

n2 - 9n - 22 = 0

(n - 11)(n + 2) = 0

If two factors = 0, at least one must = 0.

n - 11 = 0

n = 11

11,12,13

n + 2 = 0

n = -2

-2,-1,0

7 0

3 years ago

3/2 p - 14 = p + 13 <br> Please help

VLD [36.1K]

Answer:

p=54 hope this helps

Step-by-step explanation:

4 0

3 years ago

For each of the following action-selection methods, indicate which option describes it best.

Alexus [3.1K]

Answer:

The answer to thia question acn be defined as follows:

In question 1 the answer is "Option b".

In question 2 the answer is "Option a"

Step-by-step explanation:

The use of such resources is also an example of using natural resources and for the construction of the community.
It's just an example of greed to take advantage of another's need for work and pay the others only extra bucks to perform tasks and you'll get rich.
Its concept with randomness is also an event that also occurs without order or rationale. It is an example of randomness, in which the closing your eyes and selecting one of the two choices.

5 0

3 years ago

There are 22 animals in the barn. Some are geese and some are goats. There are 82 legs in all. How many of each animal are there

Free_Kalibri [48]

Let the number of geese be x.

Then number of goats is 22-x.

A goose has 2 legs, and a goat has 4.

There are a total of 82 legs.

So,

2x + 4(22-x) = 82

2x + 88 - 4x = 82

-2x = -6

x = 3

There are 3 geese and (22-3=) 19 goats.

Please mark Brainliest if this helps and feel free to ask doubts!

7 0

3 years ago