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nadezda [96]
4 years ago
3

Black: red = 2:5

Mathematics
2 answers:
muminat4 years ago
8 0

Answer:

Answer 5 questions

Step-by-step explanation:

dimulka [17.4K]4 years ago
3 0

Answer:

5/7

Step-by-step explanation:

To solve this question,

The ratio of black to red is 2:5

So we will have to sum up the two ratio

2+5=7

To determine the fraction for red cards it will be

Number of red/total sum

Red is 5 which means 5/7

So the fraction for red cards is 5/7

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What is the slope of a line that passes through (-4,-13) and (19,11)?
raketka [301]
We can find the slope from the two given points using the standard formula:
m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}
m=\frac{11-(-13)}{19-(-4)}
m=\frac{24}{23}
7 0
3 years ago
Which statement describes the graph of f(x) = 4x2 + 20x + 25?
Montano1993 [528]
This  is a perfect square  parabola
 f(x) = (2x + 5)^2 

the graph will be a parabola opening upwards and will touch the x-axis at x = -2.5
8 0
3 years ago
Read 2 more answers
Solve the equation 29 - (x+8) = 6x - 7
max2010maxim [7]
First step you should do is s<span>implify both sides of your equation:
</span>29-(x+8)=6x-7
Distribute the Negative Sign:
29+-1(x+8)=6x-7
29+-1x+(-1)(8)=6x-7
29+-x+-8=6x-7
29+-x+-8=6x+-7
<span>Combine Like Terms:
</span>(-x)+(29+-8)=6x-7
-x+21=6x-7
<span>Subtract 6x from both sides:
</span>-x+21-6x=6x-7-6x
-7x+21=-7
<span>Subtract 21 from both sides:
</span>-7x+21-21=-7-21 
-7x=-28 
<span>Divide both sides by -7:
</span>-7x/-7 = -28/-7
And now your answer should be:
x=4
~~~~~
Good luck~ Sans
6 0
3 years ago
In 5043 what number is in the hundreds place? please hurry! thank you!
timurjin [86]

Answer:

0

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A student earned grades of 84, 78, 84, and 72 out of 100 on her four regular tests. She scored 78% on the final exam and 86% on
adelina 88 [10]

If the student received marks of 84, 78, 84, and 72 on her four normal tests, her weighted mean grade is 81.2 percent.

<h3>What is mean?</h3>

The mean is described as a single number that indicates either the closed value for each item in the collection of data or the mean value for the whole set of data.

On her four regular tests, a student had grades of 84, 78, 84, and 72 out of 100. She received 86 percent on her class projects and 78 percent on the final test.

You may compute the weighted mean as follows:

\rm W_m= 0.4 \times ( \frac{84+78+84+72}{4} )+0.3 \times 78 +0.1 \times 86 + 0.2 \times 87 \\\\ W_m=  81.2 \%

Hence, if the student had marks of 84, 78, 84, and 72 on her four normal tests, her weighted mean grade would be 81.2 percent.

To learn more about the mean refer;

brainly.com/question/22871228

#SPJ1

5 0
2 years ago
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