I need help converting decimals to fractions

Mathematics

2 answers:

Sveta_85 [38]3 years ago

4 0

Just make it over 100 or something with 0 so that you’ll simplify it and get the fraction you want

DanielleElmas [232]3 years ago

3 0

When you have a decimal like 0.5, just look at how many numbers are after the decimal point. So the 0.5 has 1 number after the decimal point. Which means you make it 5/10 because to cancel them out, you need to have like terms which makes it 1/2. Hope this helps.

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If they want a sample committee consisting of four male and four female students, from a possible volunteer pool of eight male a

andreyandreev [35.5K]

Answer:

There are 2450 ways.

Step-by-step explanation:

We can pick first the 4 man, and then the 4 women. The configuration of men and women are independant with each other, so the total of possibilities is obtained by multiplying the total possibilities to pick 4 men and the total possibilities of picking 4 women.

To pick 4 men from a group of 8, the total number of possibilities is the amount of ways to pick 4 elements from a group of 8. This number is represented by the combinatorial number of 8 with 4

${8 \choose 4} = \frac{8!}{4!4!} = 70$

To pick 4 women from a group of 7, we need to count the total amount of ways to pick 4 elements from a group of 7. This is the combinatorial number of 8 with 7

${7 \choose 4} = \frac{7!}{4!3!} = 35$