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Daniel [21]
3 years ago
13

I need some help.I don't understand this question and i have tried to answer it mutiple times but i get it wrong.

Mathematics
1 answer:
miskamm [114]3 years ago
6 0

Answer:

(5,-3)

Step-by-step explanation:

y+3 = 3x-15

y= -2x + 7

plulg y in

-2x+7+3 = 3x-15

combine like terms

-2x+10 = 3x-15

add 2x to both sides and add 15 to both

5x=25

x=5

y=-2(5) +  7

y= -10 + 7

y= -3

(5,-3)

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At a historical landmark, candles are used to simulate an authentic atmosphere. A volunteer is currently putting new candles in
bogdanovich [222]

Answer:

small=2, large=8

Step-by-step explanation:

let every candle holder(small) hold x candle and large y.

=>east side= 10x+4y=52-equation 1

=>west side=2x+4y=36-equation 2

equation 1 - equation 2=10x+4y-(2x+4y)=52-36

=>10x-4y-2x-4y=16

=>8x=16

=>x=16/8=2 candles

therefore, every small candle holder has 2 candles.

for large candle holders' capacity=> 2*2+4y=36

4+4y=36

4y=32

y=32/4=8 candles

Brainliest please

5 0
3 years ago
??????????????????????
svet-max [94.6K]

Answer:

  • see attached for a graph
  • solution: (x, y) = (-1, 3)

Step-by-step explanation:

The first line has a slope of -3 and a y-intercept of 0. It will go through the origin and the point (-1, 3).

The second line has a slope of 1 and a y-intercept of 4. It will go through the points (0, 4) and (-4, 0).

The solution to the system of equations is the point where the lines cross, (-1, 3).

6 0
3 years ago
A 31-foot board is cut into two pieces so that three times the length of the longer piece is 4 times the length of the shorter p
Sonja [21]

Answer:

675

Step-by-step explanation:

Hope this answer helps you :)

Have a great day

Mark brainliest

6 0
3 years ago
Anyone mind helping!?
katrin2010 [14]

Answer:

B

Step-by-step explanation:

-(x^2+4x-21)

If you were to factor this, it would be,

-(x+7)(x-3)

Please mark me Brainliest

6 0
2 years ago
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15-2.5x=40 which is the correct first step to solve the liner equation
Aleonysh [2.5K]

Answer:

subtract 15 from both sides if you're solving for x

5 0
3 years ago
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