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spayn [35]
3 years ago
9

57 plus what equals 100

Mathematics
2 answers:
Sedaia [141]3 years ago
6 0

Answer:

57 plus 43 equals 100

Step-by-step explanation:

57 + w = 100

collecting like terms

w = 100 - 57

w = 43

netineya [11]3 years ago
4 0

Answer: 43

Step-by-step explanation:

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A dog breeder would like to know how many Dalmatian puppies are typically born in a litter. He conducts some research and select
podryga [215]

Answer:

c. 6.2 ± 2.626(0.21)

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 101 - 1 = 100

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 100 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.99}{2} = 0.995. So we have T = 2.626

The confidence interval is:

\overline{x} \pm M

In which \overline{x} is the sample mean while M is the margin of error.

The distribution of the number of puppies born per litter was skewed left with a mean of 6.2 puppies born per litter.

This means that \overline{x} = 6.2

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.626\frac{2.1}{\sqrt{101}} = 2.626(0.21)

In which s is the standard deviation of the sample and n is the size of the sample.

Thus, the confidence interval is:

\overline{x} \pm M = 6.2 \pm 2.626(0.21)

And the correct answer is given by option c.

5 0
3 years ago
David has $100.00 saved in the bank. a payment is taken out of his account for $150.00. he makes a deposit for $50.00 but at the
Dmitry_Shevchenko [17]

Gimme a few mins, imma edit this later... ;-;

6 0
3 years ago
Read 2 more answers
4267 divided by 31 in mixed number form
Rainbow [258]
Mixed Number Form:
<span>137 </span>\frac{20}{31}
8 0
3 years ago
I need helpppppppp!!!
yarga [219]

Answer: i would say probably 3 or -3

I hope it helps

3 0
3 years ago
I’ll give brainliest please help
Angelina_Jolie [31]

Answer:

130

Step-by-step explanation:

91 is 70 percent of the price

70% of 130 is 130*0.7 = 91

5 0
3 years ago
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