3 years ago

Their are 10 people in a race, how many ways can they be arranged in 1st, 2nd and 3rd place?

Mathematics

1 answer:

-Dominant- [34]3 years ago

6 0

Answer:3/8

Step-by-step explanation:

You might be interested in

Involves triangle centroid

Rasek [7]

Here, you do the same as the previous one, keeping in mind that X cuts TW in a 2:1 ratio.

$\bf TW-TX=XW\implies \cfrac{8a}{5}+\cfrac{1}{10}-\left(a +\cfrac{4}{5} \right)=XW
\\\\\\
\cfrac{8a}{5}+\cfrac{1}{10}-a-\cfrac{4}{5}=XW\implies \cfrac{3a}{5}-\cfrac{7}{10}=XW\\\\
-------------------------------\\\\$

$\bf TX:XW\qquad 2:1\qquad \cfrac{TX}{XW}=\cfrac{2}{1}\implies \cfrac{a+\frac{4}{5}}{\frac{3a}{5}-\frac{7}{10}}=\cfrac{2}{1}
\\\\\\
\cfrac{\frac{5a+4}{5}}{\frac{6a-7}{10}}=\cfrac{2}{1}\implies \cfrac{5a+4}{5}\cdot \cfrac{10}{6a-7}=\cfrac{2}{1}\implies \cfrac{10a+8}{6a-7}=\cfrac{2}{1}
\\\\\\
10a+8=12a-14\implies 22=2a\implies \cfrac{22}{2}=a\implies 11=a$

6 0

3 years ago

You are baking a casserole. The recipe calls for of a cup of beans to make 5 servings. How many cups of beans would you need to

Tomtit [17]

Answer:

5 cups

Step-by-step explanation:

5 0

2 years ago

Help please I will give brainlyest 9th grade lidral arts

Assoli18 [71]

-5 + 12 is 7

-2 - 8 is -10

6 0

2 years ago

In simplest form what is 9/10 x 2/3<br> I will mark brainlist

asambeis [7]

Answer:

3/5

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Add. 2x+2/x^2+x + 3x+3/x^2+x Answer Choices: A 5/x B 5x/x+1 C 10/x^2 D 5/x+1

Rama09 [41]

Answer:

Step-by-step explanation:

8 0

3 years ago