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Usimov [2.4K]
3 years ago
13

Y=2x+9 and 5x-10y=0 I need it graphed and the number of solutions plzzz

Mathematics
1 answer:
Furkat [3]3 years ago
5 0

Answer:

(-6,-3) one solution.

Step-by-step explanation:


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Complete the table in your scratch paper and answer the following question below.
nalin [4]

Total frequency = 56.

          Total fx = 1717

          midpoint of 45-49 = 47

          Mean of the data = 30.7

          Median of the data = 31.3

          Mode of the data = 32.5

<h3>What is Mean?</h3>

A measure of central tendency (also referred to as measures of centre or central location) is a summary measure that attempts to describe a whole set of data with a single value that represents the middle or centre of its distribution.

Here, total frequency  ∑f = 5+7+9+11+8+7+5+4

                                    = 56       (option B)

Total fx or ∑fx = 12X4 + 17X5 + 22X7 + 27X8 + 32X11 + 37X9 + 42X7+ 47X5

                        = 48 + 85 + 154 + 216 + 352 + 333 + 294 + 235

                        = 1717               (option B)

The midpoint of the score 45-49 = (45 + 49)/2  

                                                        = 47         (option B)

Mean of the data = ∑fx/ ∑f

                             = 1717 / 56

                             = 30.7                      (option D)

Median of the data = 31.3                (option A)

Mode of the data = 32.5                  (option B)

Thus, Total frequency = 56.

          Total fx = 1717

          midpoint of 45-49 = 47

          Mean of the data = 30.7

          Median of the data = 31.3

          Mode of the data = 32.5

Learn more about Central Tendency from:

brainly.com/question/13606190

#SPJ1

3 0
1 year ago
Solve for x<br><br> (1.) 5/10x-9=8<br><br> (2.) 3/4x-3=1+5/12x
Yakvenalex [24]

Answer:

1). x=\frac{5}{170}

2). x=\frac{1}{12}

Step-by-step explanation:

(1.)  \frac{5}{10x}-9=8

adding 9 on both sides we get

\frac{5}{10x}=9+8

\frac{5}{10x}=17

5=17 \times 10x

x=\frac{5}{170}

(2.)  \frac{3}{4x}-3=1+\frac{5}{12x}

\frac{3}{4x}-\frac{5}{12x}=1+3

\frac{9-5}{12x}=4

\frac{4}{12x}=4

12x=1

x=\frac{1}{12}

8 0
3 years ago
Estimate and solve 4,624 ÷ 72 = ________. (2 points)<br> 66 r 22<br> 66 r 16<br> 64 r 22<br> 64 r 16
umka21 [38]
The answer is C. 64 r 22
8 0
2 years ago
Which equation has infinitely many solutions?
777dan777 [17]

Answer:

B

Step-by-step explanation:

4 0
3 years ago
Six divided by two hundred seventy six
Sveta_85 [38]
6/276 = 0.022

Or if you want a simplified fraction, then 1/46
3 0
3 years ago
Read 2 more answers
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