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AnnZ [28]
3 years ago
11

Help help help #1-3 for a brain list award

Mathematics
1 answer:
kogti [31]3 years ago
8 0
1a) 4:2 = 2

4.98 x 2 = $9.96

1b) 3:2 = 1 1/2

4.98 x 3/2 = $7.47

2a) 9:3 = 3

4.80 x 3 = $14.40

2b) 12:3 = 4

4.80 x 4 = $19.20

3a) 6:2 = 3

15.00 x 3 = $45.00

3b) 5:2 = 2 1/2

15.00 x 5/2 = $37.50
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What is the distance between -7 and 21 on a number line?
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mafiozo [28]
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The ratio of three numbers is 1 : 4 : 2. The sum of the numbers is 35. What are the three numbers?
MA_775_DIABLO [31]

Answer:

5, 20, 10

Step-by-step explanation:

If you were to multiply the 3 numbers using trial and error up to 5, then you'd get 5, 20, and 10, which have a combined sum of 30. You have multiplied the ratio by 5.

8 0
3 years ago
What is the equation of a line that is perpendicular to the line y = -3x + 2 and passes through the point (6,8)?
aivan3 [116]

Answer:

y = 1/3x+6

Step-by-step explanation:

y = -3x+2 is in slope intercept form  y = mx+b  where m is the slope and b is the y intercept

The slope is -3

Perpendicular lines have slopes that are negative reciprocals

The slope of the perpendicular line is  -1/-3 = 1/3

The equation of the new line is

y = 1/3x +b

Using the point that passes through the line ( 6,8) and substituting in for x and y

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The equation becomes

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2 years ago
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