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Dima020 [189]
3 years ago
13

How to solve in elimination x=2y+1 -8x+2y=6

Mathematics
1 answer:
valentinak56 [21]3 years ago
6 0

Answer:

look at the picture shown

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Help please will give brainiest
Arte-miy333 [17]

Answer:

The last one

Step-by-step explanation:

5 0
2 years ago
Could you please help me with number
Anarel [89]
Too blury,take a good pic
6 0
3 years ago
A train goes twice as fast downhill as it can go uphill, and 2/3 feet as fast uphill as it can go on level ground. If it goes 12
Yuri [45]

Answer:

0.5hrs

Step-by-step explanation:

Let the speed downhill be x,

Speed uphill is 0.5x. We are told than speed uphill is \frac{2}{3} the speed on flat ground. Therefore the speed on level ground will be \frac{0.5x}{2/3}=0.75x.

From this info, we can obtain the actual speed,v_g on level ground as:

x=120m/h\\0.75x=v_g\\\\\therefore v_g=\frac{0.75x \times 120m/h}{x}\\v_g=90m/h

speed, distance and time have the relation s=d/t so to obtain time to cover 45miles:

t=d/s\\=45/90\\=0.5h

Hence it takes 0.5hrs to cover 45miles on flat ground.

4 0
3 years ago
8. Solve for x.<br> 28°<br> X
Lerok [7]

Answer:

if X is the angle degree like I think it is, then X = 56 degrees

Step-by-step explanation:

isosceles triangles will have 2 equal base angles.

90 degree angle - 28 = 62°

62 is now each base angle.

62 times 2 angles equals 124

the final angle, x, is 180 - 124 = 56°

8 0
1 year ago
Each weekday Davina rides her bike from her house to school. After school, she rides to the library. Then Davina takes the same
marin [14]

Answer:

I believe the answer is 20

Step-by-step explanation:

She rides from her house to school which is 4 kilometers. Then she rides from school to the library which is 6 kilometers. The total so far is 10 kilometers.The question then says she takes the same route home so you would multiple 10 by 2 so the answer should be 20 kilometers

3 0
2 years ago
Read 2 more answers
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