3 years ago

What is X/60=700 ? Plz help it's due tomorrow

Mathematics

2 answers:

Alisiya [41]3 years ago

3 0

42000 is the answet. that is all

Sindrei [870]3 years ago

3 0

The answer will be 42,000

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You plan to take $450 U.S on a trip to South Africa. How many rands is this if one U.S dollar equals 3.70 rands ?

kakasveta [241]

Multiply 450 and 3.70 to get 1,665 rands

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3 years ago

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A bag contains nine red balls, four green balls, and fifteen yellow balls. What is the probability of pulling out one red ball?

Papessa [141]

Answer:

9/28

Step-by-step explanation:

9+4+15=28 total balls

9= total red balls

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9/28

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3 years ago

For each of 2 ≤ n ≤ 5, compute c(n, 0) + c(n, 2) + ⋅⋅⋅ + c(n, 2k), where 2k is largest even integer ≤ n, and compute c(n, 1) + c

Ksivusya [100]

Denote $C(n,m)=\dbinom nm$ . Then

$n=2\implies\displaystyle\binom20+\binom22=1+1=2$
$n=3\implies\displaystyle\binom30+\binom32=1+3=4$
$n=4\implies\displaystyle\binom40+\binom42+\binom44=1+6+1=8$
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In general, it would appear that

$\displaystyle\sum_{k=0}^{2\lfloor\frac n2\rfloor}\binom n{2k}=2^{n-1}$

On the other hand,

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so that in general, we also get

$\displaystyle\sum_{k=0}^{2\lfloor\frac{n-1}2\rfloor+1}\binom n{2k+1}=2^{n-1}$

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3 years ago