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3 years ago

Of the 200 packages of bagels sold, 15 of them are sesame seed bagels. What percent of the bagel packages sold are Sesame Seed?

Mathematics

2 answers:

yawa3891 [41]3 years ago

8 0

The answer is 30 lol, if you do the ratio you should get the same answer

sveta [45]3 years ago

6 0

Answer:

15% of 200 is 30

Step-by-step explanation:

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Solve the inequality: -1/4(x^2-4x+3)>0

Montano1993 [528]

Ok so assume that if you have
xy=0 then x and y=0
-1/4(x^2-4x+3)>0
multiply both sides by -4 to clear fraction (-4/-4=1)
flip sign
x^2-4x+3<0
factor
(x-3)(x-1)<0

we know that (+) times (-)=(-) and
(-) times (-)=(+) so we don't want them to be both negative, we want different sign
we cannnot have 3 since it would be (0)(2)<0 which is false
we cannot have 1 either since (-2)(0)<0 is also false
lets see if the solution is in betwen 3 and 1 or outside of 3 and 1
ltry 2
2^3-4(2)+3<0
8-8+3<0
3<0
false
therefor it is outside ie
x>3 and x<1

5 0

3 years ago

How many significant figures are there in the number 3,460?

AleksandrR [38]

Answer:

3 figures

Step-by-step explanation:

Just follow these steps!

Non-zero digits are always significant.

Any zeros between two significant digits are significant.

A final zero or trailing zeros in the decimal portion ONLY are significant.

4 0

2 years ago

Please help. We have this for homework.

Aleksandr-060686 [28]

Answer:

Hey Jeffrey i got to ur school...

lol

Step-by-step explanation:

8 0

2 years ago

Reduce 45/36 fraction into the <br> lowest terms.<br>

Keith_Richards [23]

Answer:

$\frac{5}{4}$

8 0

2 years ago

Read 2 more answers

1.44 Make-up exam: In a class of 28 students, 27 of them took an exam in class and 1 student took a make-up exam the following d

Olenka [21]

Answer:

a) Decrease

b) New mean = 78.43

c) Decrease

Step-by-step explanation:

We are given the following in the question:

Total number of students in class = 28

Average of 27 students = 79

Standard Deviation of 27 students = 6.5

New student's score = 63

a) The new student's score will decrease the average.

b) New mean

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean = \dfrac{\displaystyle\sum x_i}{27} = 79\\\\\sum x_i = 27\times 79 = 2133$

New mean =

$\text{ New mean} =\dfrac{ \displaystyle\sum x_i +63}{28}\\\\ =\dfrac{2133+63}{28}= \dfrac{2196}{28} = 78.43$

Thus, the new mean is 78.43

c) Since the new mean decreases, standard deviation for new scores will decrease.

This is because the new value is within the usual values i.e. within two standard deviations of the mean. So, this wont cause a lot of variation as this value will be closer to already available data values. Also number of observations (n) in the denominator is increasing. Based on both these points we can conclude that standard deviation will decrease

Formula for Standard Deviation:

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n}}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

7 0

2 years ago