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3 years ago

Explain why a vertical line is said to have undefined slope or no slope.

Mathematics

1 answer:

Semmy [17]3 years ago

3 0

A vertical linehas undefined slope because all points on the line have the same x-coordinate.

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If x-2y=10 and x≠0, what is the value of 2x/y+5

VladimirAG [237]

Answer: 4

Step-by-step explanation:

x - 2y =10

x = 10 + 2y

$\frac{2x)}{y + 5}$

$\frac{2(10+2y)}{y+5}$

$\frac{20+4y}{y+5}$

$\frac{4(5+y)}{y+5}$ ... cancel like terms (y + 5)

= 4

5 0

2 years ago

① 5J+2S =12.20 ② 5J+ 10S =15.80 elimination method

hram777 [196]

Answer:

Step-by-step explanation:

$5J +2S =12.20 ........(1)\\5J+10S=15.80......(2)\\Multiply \:equation \:(1)\:by\:the\:coefficient\:of\:x\:in equation\:(2)\\\\Multiply\:equation(2)\: by\: the\: coefficient\:of \:x\: in \:equation (1)\\\\5J +2S =12.20 ........(1) \times 5\\5J+10S=15.80......(2)\times 5\\\\25J+10S=61......(3)\\25J+50S = 79......(4)\\Subtract\:equation\:(4)\:from\: equation\: (3)\\-40S =-18\\\frac{-40S}{-40}=\frac{-18}{-40}\\ S = 9/20\\$

$Substitute \:9/20\:for \:x \:in\:equation\:(1)\:or \:equation\:(2)\\5J+2S = 12.20\\5J +2(9/20) =12.20\\5J +9/10=12.20\\5J=12.20-9/10\\5J=113/10\\Cross-Multiply\\50J = 113\\J = 113/50$

4 0

3 years ago

!QUICK! Garrett needs 3 gallons of fruit juice to make punch.

noname [10]

I say 1/6 Gal is your answer.

8 0

3 years ago

Read 2 more answers

Does the line 3y + x = 5 pass through the point (2, 7)?

Lubov Fominskaja [6]

Well just plug the two points in... y=7 x=2

3(7) + 2= 5
is that true or not?

3(7)
21
21+2= 23

23 is not equal to 5... so no it does not pass through the point (2,7)

5 0

3 years ago

Use an inequality symbol to compare -3 + 7 ____-10 -2

Tamiku [17]

Answer:

Step-by-step explanation:

-3 + 7 = 4

-10 - 2 = -12

4 > -12

7 0

3 years ago