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4 years ago

Help with these

Mathematics

1 answer:

Vilka [71]4 years ago

5 0

-7/10 divided by 2/5 is -35/20 or -7/4 in the simplest form

-1/4 times (-4/3) is 4/12 or 1/3 in the simplest form

-3 1/3 or -10/3 times by -2 7/10 or -27/10 is 270/30 or 9

-10 2/7 or -72/7 divided by -4 4/11 or -48/11 is 792/336 or 33/14 in the simplest from

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NARA [144]

The answer is 10u +3v

7 0

4 years ago

Katy bought a candy bar and shared it with her two sisters. She gave her youngest sister 1/4 of the candy bar. Her older sister

ELEN [110]

Answer:

Step-by-step explanation:

Since the candy bar is just one

Giving 1/4 of it to her younger sister make her left with 3/4 of the candy bar i.e 1 - 1/4 = 3/4

Then giving 1/3 of the left over to her elder sister it becomes 3/4 * 1/3 =1/4

Then the remaining candy bar will be 3/4 - 1/4 = 1/2

Then she will be left with 1/2 i.e half of the candy bar.

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3 years ago

please help... On a market day , Aunt Mansah bought 100 oranges at 4 for 20p. On reaching home, she gave some to her husband and

vlabodo [156]

Answer:

250

Step-by-step explanation:

3 0

3 years ago

Divide : (8a^2b^4 - 20a^4b^5 + 48a^6b^6) by 4a^2b^4

Leno4ka [110]

Hey there ! please refer to the attachment .

I hope its help you !

4 0

2 years ago

A 4-person task force is to be formed from the 4 men and 3 women who work in Company G’s human resources department. If there ar

Dima020 [189]

Answer:

Total 18 task force can be formed.

Step-by-step explanation:

Total number of men = 4

Total number of women = 3

We need to form a 4-person task force.

The total number of ways of selecting r items from n items is

$^nC_r=\frac{n!}{r!(n-r)!}$

Total number of ways of selecting 2 men from 4 men = $^4C_2$

Total number of ways of selecting 2 women from 3 men = $^3C_2$

Total number of different task forces that can be formed is

$Total=^4C_2\times ^3C_2$

$Total=\frac{4!}{2!(4-2)!}\times \frac{3!}{2!(3-2)!}$

$Total=\frac{4!}{2!2!}\times \frac{3!}{2!1!}$

$Total=\frac{4\times 3\times 2!}{2\times 1\times 2!}\times \frac{3\tmes 2!}{2!}$

Cancel out common factors.

$Total=6\times 3$

$Total=18$

Therefore total 18 task force can be formed.

7 0

3 years ago