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sergeinik [125]
3 years ago
5

Hey if you could help me with this it'd mean a lot I can't figure it out

Mathematics
1 answer:
Blababa [14]3 years ago
6 0

Answer:

L = 12  S = 5

Step-by-step explanation:

L+S=17

3L+2S=46

Multiply the first equation by -2

-2L -2S = -34

Then add it to the second equation

-2L -2S = -34

3L+2S=46

------------------

L = 12

Now we can find S

L+S = 17

12 + S = 17

Subtract 12 from each side

S = 17-12

S = 5

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Ivanshal [37]
D e c a is all the answer
6 0
3 years ago
Extra points!! A candle is 17 in tall after burning for 3 hours. After 5
PIT_PIT [208]

Answer:

1) h=-t+20  

2) 12 inches tall.

Step-by-step explanation:

1) The equation of the line in Slope-Intercept form is:

y=mx+b

Where "m" is the slope and "b" is the y-intercept.

In this case:

y=h (The height of the candle in inches)

x=t (The time in hours)

Then, we can rewrite it:

h=mt+b

Based on the information provided in the exercise, the line passes through these points:

(3,17) and (5,15)

Then, we can find the slope of the line with the formula m=\frac{y_2-y_1}{x_2-x_1}:

 m=\frac{15-17}{5-3}=-1

Now we need to substitute the slope and one of the points into  h=mt+b  and then solve for "b":

17=(-1)(3)+b\\\\b=17+3\\\\b=20

Substituting values, we get that the a linear equation that models the relationship between the heigth of the candle and the time, is:

h=-t+20  

2) We must substitute t=8 into the linear equation  h=-t+20 in order to find the height of the candle after burning 8 hours:

 h=-(8)+20\\\\h=12  

4 0
3 years ago
Work out the value of:<br> :<br> a? – 4b + 2c<br> 2<br> when a = 1,b = -3 and c= 2
cricket20 [7]

Answer:

The answer is 17

Step-by-step explanation:

<h3><u>Given</u>;</h3>
  • a² – 4b + 2c
  • a = 1, b = (-3) and c = 2
<h3><u>To </u><u>Find</u>;</h3>
  • The value of a² – 4b + 2c

Now, Evaluate

a² – 4b + 2c

(1)² – 4(-3) + 2(2)

1 + 12 + 4 = 17

Thus, The value is 17

<u>-TheUnknownScientist 72</u>

4 0
2 years ago
PLEASE HELPP I HAVE A TIMER. which equation represents the graphed function?
babunello [35]

Answer:

C. y = 1/4x -2

<u><em>Please mark as brainliest if answer is right </em></u>

Have a great day, be safe and healthy  

Thank u  

XD  

7 0
3 years ago
Please help i need to know how to work it out too.
Stella [2.4K]
   x^2 + 4x + 3
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= -----------------------
       (x + 3) (x +6)

      (x + 1)
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3 0
3 years ago
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