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xxTIMURxx [149]
2 years ago
15

What is a factor for -20?​

Mathematics
2 answers:
liubo4ka [24]2 years ago
6 0

Answer:

factors are 2 and 5.

Step-by-step explanation:

Factors are numbers which you can multiply together to get another number. For Example : The numbers 2 and 3 are factors of 6 because 2 x 3 = 6. A number can have many factors! Example : 2 and 4 are factors of 8, because 4 x 2 = 8. Also 1 and 8 can also be factors of 8, because 1 x 8 = 8.

on prime factorization, we get the factors of 20 as,

2 x 2 x 5 = 20.

Essentially, to factor a negative number, find all of its positive factors, then duplicate them and write a negative sign in front of the duplicates. For instance, the positive factors of −3 are 1 and 3.

-2 x 2 x 5 = -20

2 x 2 x -5 = -20

Elena L [17]2 years ago
4 0

Answer:

1 ,2,4,5,10,-1,-2,-4,-5,-10,20

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Which congruency theorem can be used to prove that △ABD ≅ △DCA?<br> SSS<br> ASA<br> SAS<br> AAS
NISA [10]

Answer:

SAS


Step-by-step explanation:

Given: Two triangles ΔABD and ΔDCA,

We have, AD=AD (common)

               ∠A=∠A (Given)

                BA=CD (Sides opposite to equal angles are always equal)

With the SAS rule of congruency,

ΔABD≅ΔDCA


3 0
2 years ago
Read 2 more answers
Miguel created the ratio table below to show how he uses the money he earns at work. How much money will he save if he earns 120
loris [4]

Answer:

The money he will save if he earns $120.00 is <u> $90.00</u>.

Step-by-step explanation:

Given:

In the figure is the ratio of the savings and the earnings.

Now, to find out that how much savings will be if Miguel earns $120.00.

We need to get the percentage of the ratio of the earning and saving.

So, according to the table:

If he earns $10.00 then he saves $7.50.

\frac{7.50}{10}\times 100

=0.75\times 100

=75

So, if Miguel earns $10.00 he save the 75% of it.

If he earns $50.00 then he saves $37.50.

As we calculate the percentage as the above process then the saving is 75% of the earning.

And, if he earns  $150.00 and save $112.50 then it is also the 75% of the earning as mentioned above.

Now, to find the saving of the earning $120.00.

So, it will be 75% of the earning as we observe in the above case:

75% of $120.00

\frac{75}{100}\times 120

=0.75\times 120

=90

Therefore, the money he will save if he earns $120.00 is <u> $90.00</u>.

3 0
2 years ago
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A cafeteria sold 80 frozen yogurts on Monday, and 55% of these were peach yogurt. How many peach yogurts were sold on Monday?
Oliga [24]
The key thing to note is that percentage means that number over 100. Thus 55% can be written as 55/100. This converts to the decimal 0.55. If we then multiply this by 80, we get 44.
44 peach yogurts were sold on Monday.
5 0
2 years ago
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What is the perimeter of quadrilateral ABCD?
Bogdan [553]

Answer:

I believe it is 18 + the square root of 26.

Step-by-step explanation:

The slope of line BC should be 5/1 because it goes up 5 times and to the right once. If you square root 26 you get 5.09.

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What is the median of the data: 3, 8, 6, 6, 4, 6, 9, 9, 12
Vitek1552 [10]

Answer:

it's 4

Step-by-step explanation:

median means the number at the center or middle of a data

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2 years ago
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