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kvv77 [185]
3 years ago
9

How many solutions does the equation 3n + 5 (n-4) = 9n -5 have

Mathematics
1 answer:
Tju [1.3M]3 years ago
8 0

3n + 5(n - 4) = 9n - 5 \\  \\ 3n + 5n - 20 = 9n - 5 \\  \\ 8n - 20 = 9n - 5 \\  \\ 8n - 9n =  - 5 + 20 \\  \\  - n =   15 \\  \\ n =  - 15

<h3>Hope This Helps</h3>

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Y=3/8x−4 write in standard form
Naddik [55]
Answer:

y=3/8x-4
Move the expression to the left
y-3/8x=-4
Multiply both sides by 8
8y-3x=-32
Reorder the terms
-3x+8y=-32
Change the signs and standard form is...
3x-8y=32


5 0
3 years ago
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At 19:30 Jack lights a campfire. At 22:15 he puts the fire out. Yeah
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3 0
3 years ago
Please help me answer number 4! And if you can, please explain!
Leno4ka [110]
If Nathan does 9 minutes of push ups for 3 days, that's 9 divided by 3, which is 3. (9/3=3)  So nathan does 3 minutes of push ups each day, so just multiply each day by 3 to find the correlation between the two.

The Table should look like this: 

# of days      # of Minutes
1                     3
2                     6
3                     9
4                     12
5                     15
6                     18 
7                     21

5 0
3 years ago
Which is a multiple of 15
serious [3.7K]

Multiples of 15 are: 15,30,45,60,75,90,105,120,135,150,165,180,195,210,225,240,255,270,285,300,315,330,345,360,375,390,405,420,435,450,465,480,495,510,525,540,555,570,585,600,615,630,645,660,675,690,705,720,735,

8 0
3 years ago
Trevor and Marissa together have 26 t shirt to sell if Marissa has 6 fewer t shirts than Trevor find how many t-shirts Trevor ha
Romashka-Z-Leto [24]
1) Set up an equation for the total, with T representing Trevor and M representing Marissa: 

T + M = 26

2) Use the provided information related Marissa's t-shirts to Trevor's to solve for one variable at a time (in this case, T): 

M = T-6 

3) Substitute M with this equation into the initial, first equation: 

T + (T-6)  = 26

4) Combine like terms and isolate T: 

T+T = 26 + 6

2T = 32 

T = 16 

5) Therefore, you now know that Trevor has 16 t-shirts. To find the number of t-shirts that Marissa has, simply plug in this amount for T into the equation that was already set up for M: 

M = T - 6 

M = 16 - 6 

M = 10

Therefore, Trevor has 16 t-shirts and Marissa has 10 t-shirts.

Hope this helps, and don't forget to mark my answer as the Brainliest! :) 

 



6 0
3 years ago
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