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vfiekz [6]
3 years ago
9

What is the solution 1/x= x+3/2x^2

Mathematics
1 answer:
weqwewe [10]3 years ago
8 0

Answer:

3

Step-by-step explanation:

1/x=x+3/2x²

By cross-multiplication, we get,

2x²=x(x+3)

2x²=x²+3x

2x²-x²-3x=0

x²-3x=0

x(x-3)=0

x=3

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tims math homework is on five consecutive pages in the math textbook, and the sum of those page numbers is 630. what is the page
Brrunno [24]

Answer:129

Step-by-step explanation:

630/5 is 126. Add 126, two numbers below it, and two above it. So, 124+125+126+127+128=630. The next page is 129

3 0
3 years ago
Help!!!
Artyom0805 [142]

Answer:

  C:  y+7=2/5(x+4)

Step-by-step explanation:

The point-slope form of the equation of a line with slope m through point (h, k) is ...

  y -k = m(x -h)

You are given m=2/5 and (h, k) = (-4, -7). Put these numbers into the form and simplify the signs:

  y -(-7) = 2/5(x -(-4)) . . . . . numbers put into the form

  y +7 = 2/5(x +4) . . . . . . . signs simplified . . . . matches choice C

5 0
3 years ago
Para decorar una pared se disponen de tiras de papel azules de 15 cm, verdes de 20 cm, y rojas de 25 cm. En la pared se quiere a
den301095 [7]

Answer:

a) Smallest line that can be made with each color = 300 cm

b) Total strips should be used = 47 strips

c) Total strips used of blue color = 20

  Total strips used of green color = 15

  Total strips used of red color = 12

Step-by-step explanation:

Given - To decorate a wall, there are 15 cm blue, 20 cm green, and 25 cm red strips of paper. On the wall you want to build three lines of the same size, one of each color and without cutting any strip.

To find - a) How long is the smallest line that can be made with each color?

              b) How many strips should be used?

              c) How many of each color?

Proof -

a)

For the smallest line that can be made with each color, we just have to find the lcm (least common multiple) of the 3 srtips.

Firstly,

Decompose the 3 strips to its prime factors , we get

15 = 3×5

20 = 2²×5

25 = 5²

So,

The Lcm(15, 20, 25) = 3×2²×5² = 3×4×25 = 300

∴ we get

Smallest line that can be made with each color = 300 cm

b)

Now,

Total strips used = 300 cm

Strips used by 15 cm blue = \frac{300}{15} = 20 strips

Strips used by 20 cm green = \frac{300}{20} = 15 strips

Strips used by 25 cm red = \frac{300}{25} = 12 strips

So,

Total strips should be used = 20 + 15 + 12 = 47 strips

c)

Total strips used of blue color = 20

Total strips used of green color = 15

Total strips used of red color = 12

6 0
3 years ago
Two rectangles are similar. Rectangle ABCD has a length of 20 inches and width of 12 inches. Rectangle ABCD is dilated 25% of it
Solnce55 [7]

FGHJ is 60 inches, because it was dilated 25%, and 25% of 240 is 60

7 0
3 years ago
If 50 grams of sweets cost 250 rupees find the cost of 380 grams of sweets. ​
kolezko [41]
Cost of 380 gram of sweets = (2.1/50) * 380 = $15.96
6 0
2 years ago
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