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Ludmilka [50]
3 years ago
12

Using 7 four times and 1 one time getting to 100​

Mathematics
1 answer:
777dan777 [17]3 years ago
4 0

Answer:

So the answer is (7+\frac{1}{7} )\times (7+7)=100

Step-by-step explanation:

Given,

Using 7 four times and 1 one time getting to  100

If we are write this way then easily get the answer;

(7+\frac{1}{7} )\times (7+7)

Add together 7+\frac{1}{7} by making a common denominator of  7 and also add (7+7) in the second set of parenthesis to yield 14

(\frac{49+1}{7} )\times 14

\frac{50}{7} \times 14

50\times 2   (By Cross-reduce and multiply the fractions)

100

∴ (7+\frac{1}{7} )\times (7+7)=100

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Lina20 [59]
15/60 simplified is 1/4 so the answer is 25%
6 0
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solniwko [45]

Answer:-91/3

Step-by-step explanation: I hope it’s right

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Q4. A simple random sample of size n=180 is obtained from a population whose size=20,000 and whose population proportion with a
IgorLugansk [536]

Answer:

np = 81  , nQ = 99

Step-by-step explanation:

Given:

X - B ( n = 180 , P = 0.45 )

Find:

Sampling distribution has an approximate normal distribution

Computation:

nP & nQ ≥ 5

np = n × p

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nQ = n × (1-p)

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Therefore, sampling\ distribution\ has\ an\ approximately\ normal\ distribution.

3 0
3 years ago
Kelly subtracted 2.3 from 20 and got 17.7. explain why this answer is reasonable
Serga [27]
20-2.3=17.7 what don't you understand? 

<span>20-2= 18 </span>

<span>18-.3=17.7
</span><span>its reasonable because if you do the calculation, 17.7 is the answer
</span>HOPE HELPED:D
this is 5th grade,lol

3 0
3 years ago
Thirty six plus b is greater than negative twenty four b plus negative sixty four
8_murik_8 [283]

Answer:

Step-by-step explanation:

36 + b > -24b + (-64)

24b + b > -36 - 64

25b >  100

b > 100/25

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8 0
3 years ago
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