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bagirrra123 [75]
3 years ago
14

Which is the best first step in solving the following system of equations y=7x+3 y=9x

Mathematics
2 answers:
Vanyuwa [196]3 years ago
8 0

Answer:

13.5 and 1.5

Step-by-step explanation:

y=7x+3

y=9x

9x=7x+3

2x=3

x=3/2

y=9(3/2)

y=13.5

Fed [463]3 years ago
3 0

Answer:

Replace the y value in y=7x+3 with 9x

Answer: x=3/2

Step-by-step explanation:

y=7x+3; y=9x

9x=7x+3

Subtract 7x from both sides

2x=3

Divide by 2 on both sides

x=3/2

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How many eighth graders chose History as their favorite subject. Round answer to the nearest whole number.
Elenna [48]

The percentage of eighth-graders that chose History as their favorite subject is 19%

<h3>Percentages and proportion</h3>

From the given table, we have the following parameters

Total students in the 8th grade = 124 students

Total number of 8th graders that chose history = 11 + 12

Total number of 8th graders that chose history = 23

Required percentage = 23/124 * 100

Required percentage = 19%

Hence the percentage of eighth-graders that chose History as their favorite subject is 19%

Learn more on percentages here: brainly.com/question/24304697

4 0
2 years ago
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4 0
3 years ago
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kifflom [539]

Answer:

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8 0
3 years ago
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dem82 [27]

Answer:

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Step-by-step explanation:

3 0
3 years ago
What is 10 2/3 rounded to the nearest half
Margaret [11]
10 1/2

Hope this helps :)
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