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Sedbober [7]
3 years ago
12

Evaluate this 3 times 9 plus 10 times 36/6

Mathematics
1 answer:
neonofarm [45]3 years ago
5 0

Answer:

87

Step-by-step explanation:

3×9 + 10×36/6

27 + 10×6

27 + 60

87

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In a survey of 300 T.V. viewers, 40% said they watch network news programs. Find the margin of error for this survey if we want
bixtya [17]

Answer:

<h2>0.05543</h2>

Step-by-step explanation:

The formula for calculating the margin of error is expressed as;

M.E = z * \sqrt{\frac{p*(1-p)}{n} } where;

z is the z-score at 95% confidence = 1.96 (This is gotten from z-table)

p is the percentage probability of those that watched network news

p = 40% = 0.4

n is the sample size = 300

Substituting this values into the formula will give;

M.E = 1.96*\sqrt{\frac{0.4(1-0.4)}{300} }\\ \\M.E = 1.96*\sqrt{\frac{0.4(0.6)}{300} }\\\\\\M.E = 1.96*\sqrt{\frac{0.24}{300} }\\\\\\M.E = 1.96*\sqrt{0.0008}\\\\\\M.E = 1.96*0.02828\\\\M.E \approx 0.05543

Hence, the margin of error for this survey if we want 95% confidence in our estimate of the percent of T.V. viewers who watch network news programs is approximately 0.05543

5 0
2 years ago
An athlete eats 0.4kg of protein per week while training. How much protein will she eat during 6 weeks of training?
kolezko [41]
0.4kg  per week.     so 0.4kg  x  6 weeks is 2.4kgs
7 0
3 years ago
Jose bought a bag of 6 oranges for $2.82. He also bought 5 pineapples. He gave the cashier $20 and received $1.43 change. How mu
svp [43]
Your answer is: $3.15 each.

Here are the steps:

First, I added $2.82 and $1.43. Then, I subtracted the sum ($4.25) from $20. Lastly, I divided the difference($15.75) by five because there were five pineapples. Which gave me the answer: $3.15.
5 0
2 years ago
kala is a software salesmen. her salary is $2400, and she makes an additional $80 for every copy of english is fun she sells. le
andrew11 [14]

P = 2400 + 80N

Total pay if 24 copies:

P = 2400 + 80N

N equals 24

P = 2400 + 80(24)

Total pay = $4,320

6 0
3 years ago
I need help on iready
kicyunya [14]

Answer:

the answer is 3

Step-by-step explanation:

because if you do the methoes method you know that it rules out 1 and 2 after you do that its just between 3 and 4, for the caunususicon there has to be one, that is why i think its 3. hope this helps!

7 0
3 years ago
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