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Vinvika [58]
3 years ago
8

What is the ratio for 4:30

Mathematics
1 answer:
babymother [125]3 years ago
5 0
4/30 = 2/15

hope helped 
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A bottling company uses a filling machine to fill plastic bottles with a popular cola. The bottles are supposed to contain 300 m
Lana71 [14]

Answer:

0.16

Step-by-step explanation:

For a normal distribution, the 68-95-99.7 rule says that 68% of the distribution lies within 1 standard deviation from the mean, 95% within two standard deviations and 99.7% within three standard deviations.

From the question,

Mean μ = 298 ml

Standard deviation σ = 3 ml

A value of 295 ml is within one standard deviation = 68%.

Since it's on the lower side, it's within 68% ÷ 2 = 34%.

The lower half below the mean is 50% of the distribution. Hence, for a selection less than 1 standard deviation, the probability is

50% - 34% = 16% = 0.16

5 0
3 years ago
Equation of the graph
natka813 [3]

Answer:

A and C

Step-by-step explanation:

It can not be D, since that will mean that <em>the line is perfectly horizontal</em>, with 0 as its slope.

It can be C, since the <em>equation's slope is positive and has a negative y-intercept</em>, like the graph.

Changing around A gives us y = 2x - 3. That has a <em>positive slope and a negative y-intercept</em>, like the graph. So, A is a possibility.

Changing around B gives us y = ²/₃x + 3. This has a positive slope, <em>but also a positive y-intercept</em>, so B can not be the answer.

4 0
3 years ago
Point A is on a number line halfway between -17 and 5. Point B is halfway between point A and 0. What integer does point B reprs
Korolek [52]

Answer:

-3

Step-by-step explanation:

Point A is half way between -17 and 5. This is span has a total distance of 17 + 5 = 22. Half way is 11 units from -17 or 5. So -17 + 11 = -6.

Point B is halfway between A at -6 and 0. This is a distance of 6. So halfway is 3 units away at -3.

7 0
3 years ago
2. How many real number solutions are there to the equation 0 =-3x2 + x - 4?
goblinko [34]

For this case we have the following quadratic equation:

-3x ^ 2 + x-4 = 0

Where:

a = -3\\b = 1\\c = -4

By definition, the discriminant of a quadratic equation is given by:

d = b ^ 2-4 (a) (c)

We have to:

d> 0: Two different real roots

dTwo different complex roots

d = 0: Two equal real roots

Substituting the values we have:

d = 1 ^ 2-4 (-3) (- 4)\\d = 1-48\\d = -47

So, we have two different complex roots

Answer:

Two different complex roots

7 0
3 years ago
Erin needs to save a total of $150, she already has $80. What is the fewest number of hours she will need to work if she earns $
harkovskaia [24]
80 divided by 15 Is =5.333333 which I don’t know how to round it but it would be around 5 at least
8 0
3 years ago
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