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ki77a [65]
3 years ago
7

If t represents the amount of time Neda has spent typing the second letter, which equation states the rule used to determine the

number of words, W, Neda has typed today?
Mathematics
1 answer:
Gennadij [26K]3 years ago
3 0

Answer:

W = t + 200

Step-by-step explanation:

Number of words typed in the first letter = 200

The relationship between the total words typed, W and the number of seconds, t spent on the second letter :

W = number of words typed in first letter + t

W = 200 + t

Choosing any pair of values from the table :

W = 245 ; t = 45

W = 200 + 45

W = 245

Therefore, the number of words, W typed today can be represented as

W = 200 + t

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pantera1 [17]

Answer:

  • 8 3/4
  • 2, 3
  • 4 1/2, 11 1/4
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Step-by-step explanation:

<h3>a)</h3>

The first line is simply the sum of the two given numbers.

  3 1/2 +5 1/4 = (3+5) +(2/4+1/4) = 8 3/4

__

To find values on the remaining lines, it is convenient to find the ratios of the numbers involved. The ratio of yellow to blue is ...

  Y/B = (3 1/2)/(5 1/4) = (7/2)/(21/4) = (7/2)(4/21) = 2/3

Then ...

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This tells you the numbers on the second line are ...

  Y = 2; B = 3

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The value for B on the third line is the basic ratio number multiplied by (6 3/4)/3 = 2 1/4. Then the other two numbers are ...

  Y = 2(2 1/4) = 4 1/2

  total = 5(2 1/4) = 11 1/4

__

The value for Y on the fourth line is the basic ratio number multiplied by (6 1/2)/2 = 3 1/4. Then the other two numbers are ...

  B = 3(3 1/4) = 9 3/4

  total = 5(3 1/4) = 16 1/4

_____

<h3>b)</h3>

The equation is the one we used to find the values on the second line:

  Y/B = 2/3

7 0
2 years ago
The slope of the line below is 2/5 and the y-intercept is 4 . What is the slope intercept equation of the line ?
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Y=2/5X+4 is the slope-intercept form. 

4 0
3 years ago
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Use cross products to demonstrate whether the two ratios are equivalent in this problem: 4 over 6 times 14 over 21
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3 years ago
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5/6, use this method next time another question comes up

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