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erma4kov [3.2K]
3 years ago
10

Divide £16 in the ratio 3 : 1

Mathematics
2 answers:
lana66690 [7]3 years ago
7 0

Answer:

12 : 4

Step-by-step explanation:

3:1

3+1 = 4

16 / 4 = 4

3 x 4 =12

1 x 4 =4

12 : 4

seraphim [82]3 years ago
4 0
£12:£4
Add the ratio together to get 4 and then divide 16 by 4
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What is the r-value of the following data to three decimal places?
allsm [11]

Answer: it’s A

Step-by-step explanation:

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3 years ago
Mary took a math test and she got four questions incorrect and 21 correct. What percent did answer correctly?
AnnZ [28]

Answer:

84%

Step-by-step explanation:

21 correct + 4 wrong = 25 questions in total

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6 0
3 years ago
Priya's cat is pregnant with a litter of 5 kittens. Each kitten had a 30% chance of being chocolate brown. Estimate the probabil
aniked [119]

Answer:

So, the probability is P=0.3087.

Step-by-step explanation:

We know that Priya's cat is pregnant with a litter of 5 kittens, so n=5.

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We get that p=0.3 and q=1-0.3=0.7.

We calculate the probability that exactly 2 kittens will be chocolate brown, so k=2.

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\boxed{P(X=k)=C_k^n\cdot p^k\cdot q^{n-k}}

we get

P(X=2)=C_2^5\cdot 0.3^2\cdot 0.7^3\\\\P(X=2)=\frac{5!}{2!(5-2)!}\cdot 0.03087\\\\P(X=2)=10\cdot 0.03087\\\\P(X=2)=0.3087\\

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5 0
4 years ago
26 cm/s = ? m/min... please help i don't understand this at all
Orlov [11]

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4 years ago
Nina was finding multiples of 6. She said,
IRISSAK [1]

Answer:

18 and 42 are both multiples of 6, and when I add them, I also get a multiple of 6:

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Step-by-step explanation:

18 and 42 are both multiples of 6 which means 6 is a factor of both numbers.

6⋅3=18

6⋅7=42

Solution_1_82d819495d2abc4f1edf4f9286349041

When you add 18 and 42, you can use the distributive property to show that the sum is also a multiple of 6:

6⋅3+6⋅7=6⋅(3+7)=6⋅10

5 0
4 years ago
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