The list of all factors for 21 is 1, 3, 7, and 21. True False

Mathematics

1 answer:

aniked [119]2 years ago

7 0

True the factors of 21 are 1,3,7 and 21

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Katarina [22]

Answer:

3.6

Step-by-step explanation:

20% of $18

20/100 x 18 = 180/50 =3 30/50 = 3 60/100 = 3.6

8 0

3 years ago

What is 1 2/3 multiple 2/3

Flauer [41]

Answer:

$1\frac{1}{9}$

Step-by-step explanation:

Given the following question:

$1\frac{2}{3} \times\frac{2}{3}$

In order to multiply the two, we have to convert the mixed number into a improper fraction and then multiply the numerator by the numerator, the denominator by the denominator.

$1\frac{2}{3} =3\times1=3+2=\frac{5}{3}$
$\frac{5}{3} \times\frac{2}{3}$
$5\times2=10$
$3\times3=9$
$=\frac{10}{9}$

<u>Convert the improper fraction into a mixed number:</u>

$\frac{10}{9}$
$\frac{10}{9} =10\div9=1\frac{1}{9}$
$=1\frac{1}{9}$

Your answer is "1 1/9."

Hope this helps.