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lorasvet [3.4K]
2 years ago
7

Help me please thank you

Mathematics
1 answer:
lubasha [3.4K]2 years ago
6 0
D..............................
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What is the location of the point on the number line that is 4/7 of the way from a = 4 to b = 18?
Sever21 [200]

Answer:

B) 12

Step-by-step explanation:

The difference between a and b = 18 - 4 = 14 units

4/7 of this difference = (4/7) x 14 = 8

the location of the point is hence the value at "a" plus 4/7 of the difference

= 4 + 8

= 12

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3 years ago
Which coordinate pairs make the equation x-9y=12 true?
asambeis [7]

Answer:

(12,0) and (3, -1) and (0,-4/3)

Step-by-step explanation:

To find if a point makes an equation true, just substitute its x and y values in in the equation and simplify.

1) Let's test the point (12,0). Substitute 12 for x and 0 for y in the equation:

x-9y=12\\(12)-9(0)=12\\12-0=12\\12=12

12 does equal 12, so (12,0) makes the equation true.

2) Let's test the point (0, 12). Substitute 0 for x and 12 for y in the equation:

x-9y=12\\(0)-9(12) = 12\\0-108 = 12\\-108 = 12

However, -108 does not equal 12, so (0,12) does not make the equation true.

3) Let's test the point (3, -1). Substitute 3 for x and -1 for y in the equation:

x-9y=12\\(3)-9(-1) = 12\\3 + 9 = 12\\12 = 12

12 does equal 12, so (3, -1) makes the equation true.

4) Let's test the point (0, -4/3). Substitute 0 for x and -4/3 for y in the equation:

(0) -9(-\frac{4}{3} ) = 12\\0 + \frac{36}{3} = 12\\0 + 12 = 12 \\12 = 12

12 does equal 12, so (0, -4/3) makes the equation true.

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3 years ago
Find the constant of variation for the relation and use it to write an equation for the statement. Then solve the equation 7 If
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The required constant of variation is 4 and the equation is y=4xz over w (over meaning a fraction)

I don't know if you need a explanation on how to do this, just let me know if so.

Step-by-step explanation:

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2 years ago
Which of these people will be eligible for a tax deduction?
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Miles, who makes cash contributions to charities.
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