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Scilla [17]
4 years ago
10

How can you use rates to determine whether a situation is a proportional relationship?

Mathematics
1 answer:
Vinvika [58]4 years ago
3 0
Compare corresponding values of the variables to determine whether there is constant rate.
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Could you please help me with number 6 thank you sm !!
ololo11 [35]

Answer:

  • A) a = 4, b = 3

Step-by-step explanation:

<h3>#6</h3>

<u>Given equation:</u>

  • 4/(x - 3) + 2/(x - 2) = 2

<u>Multiply all terms by (x - 3)(x - 2):</u>

  • 4(x - 2) + 2(x - 3) = 2(x - 3)(x - 2)
  • 2(x - 2) + (x - 3) = (x - 3)(x - 2)
  • 2x - 4 + x - 3 = x² - 5x + 6
  • x² - 5x - 3x + 6 + 7 = 0
  • x² - 8x + 13 = 0
  • x = (8 ± √(8² - 4*13))/2 = (8 ± √12)/2 = (8 ± 2√3)/2 = 4 ± √3

<u>Compare this to the given form to get:</u>

  • a = 4, b = 3

Correct choice is A

6 0
2 years ago
Last week Mrs. Duncan rented a movie that was 99 minutes long. This week she rented a movie that was 4/3 the length of last week
Kay [80]
99*(4/3)=x
99*1.333=x
x=132

This week's movie was 132 minutes long, or 2 hours 12 minutes long.
3 0
3 years ago
Find the missing value.<br> Hint: Use the number line to find the missing value.<br> -1-7-
Ann [662]

Answer:

where is number line

Step-by-step explanation:

5 0
3 years ago
Identify the mode of the following numbers 18 4 20 25 20
cluponka [151]
The mode is 20. Your welcome.
8 0
4 years ago
Read 2 more answers
Look at the numbers in the bon
Lana71 [14]
20 is the answer because it is the only number that has positive and it says sum
5 0
3 years ago
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