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LiRa [457]
3 years ago
5

Pls help me with this problem

Mathematics
1 answer:
hammer [34]3 years ago
4 0

3x - 8 = 4x - 17 \\  \\  \sf \longmapsto \: 3x + 4x =   -  17 + 8 \\  \\  \sf \longmapsto \: 7x = - 9 \\   \\  \sf \longmapsto \: x =  \frac{ - 9}{7}

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___ x 1,000=500<br> Please help Thank you
qaws [65]

Answer:

0.5

Step-by-step explanation:

500/1000 = 0.5

0.5 * 1000 = 500

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A line passes through the points (–5, 2) and (10, –1). Which is the equation of the line?
beks73 [17]

Slope = (2 + 1) / (-5 - 10) = -3/15 = - 1/5

Equation

y - 2 = -1/5 (x + 5)

y - 2 = -1/5 x - 1

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Two points on L1 and two points on L2 are given. Use the slope formula to determine if lines L1 and L2 are parallel, perpendicul
vlada-n [284]

Answer:

The lines L1 and L2 neither parallel nor perpendicular

Step-by-step explanation:

* Lets revise how to find a slope of a line

- If a line passes through points (x1 , y1) and (x2 , y2), then the slope

 of the line is m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

- Parallel lines have same slopes

- Perpendicular lines have additive, multiplicative slopes

 ( the product of their slopes is -1)

* Lets solve the problem

∵ L1 passes through the point (1 , 10) and (-1 , 7)

- Let (1 , 10) is (x1 , y1) and (-1 , 7) is (x2 , y2)

∴ x1 = 1 , x2 = -1 and y1 = 10 , y2 = 7

∴ The slope of L1 is m1 = \frac{7-10}{-1-1}=\frac{-3}{-2}=\frac{3}{2}

∵ L2 passes through the point (0 , 3) and (1 , 5)

- Let (0 , 3) is (x1 , y1) and (1 , 5) is (x2 , y2)

∴ x1 = 0 , x2 = 1 and y1 = 3 , y2 = 5

∴ The slope of L2 is m2=\frac{5-3}{1-0}=\frac{2}{1}=2

∵ m1 = 3/2 and m2 = 2

- The two lines have different slopes and their product not equal -1

∴ The lines L1 and L2 neither parallel nor perpendicular

7 0
3 years ago
Dara has 12 counters. Diego has 7 counters. How many fewer counters does Diego have?
Vladimir [108]

Answer: Diego has 5 fewer counters.

Step-by-step explanation:

In order to find the answer, you need to find the difference between the amount of counters Dara has compared to Diego.

(Amount Dara has) - (Amount Diego has) = Difference

12 - 7 = 5

Diego has 5 fewer counters

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3 years ago
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