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kirill115 [55]
2 years ago
15

Solve the system of linear equations y= 2x -3Y= x + 6

Mathematics
1 answer:
Alja [10]2 years ago
7 0

Answer:

x=9, y=15. (9, 15).

Step-by-step explanation:

y=2x-3

y=x+6

----------

2x-3=x+6

2x-x-3=6

x-3=6

x=6+3

x=9

y=9+6=15

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A box contains orange balls and green The number of more four the number of orange If there 38 balls how many green balls and ho
saveliy_v [14]

let number of green balls= x

let number of orange balls=x+4

x+x+4=38

2x=38-4

2x=34

x=17

number of green balls=17

number of orange balls=21

8 0
3 years ago
Pls pls pls help!!!!!!
gtnhenbr [62]

9514 1404 393

Answer:

  • ornament area = 379.8 cm²
  • paint needed: 114 bottles

Step-by-step explanation:

The surface area of one cone with slant height s and radius r is ...

  SA = πr² +πrs = πr(r+s)

For the cone that is half an ornament, the surface area is ...

  SA = (3.14)(4.2 cm)(4.2 cm + 10.2 cm) = 189.9072 cm²

The area of one ornament is the area of two cones:

  one ornament area = 2×189.9072 cm² ≈ 379.8 cm²

60 ornaments will be 120 cones, so will have a total surface area of ...

  total area = 120(189.9072 cm²) = 22,788.864 cm²

__

If one bottle of paint will cover 201 cm², then the number of bottles of paint required is ...

  (22788.864 cm²)/(201 cm²/bottle) ≈ 113.4 bottles

5 0
3 years ago
PLEASE HELP ME I WILL GIVE BRAINLEST
alukav5142 [94]

Answer:

1\frac{2}{3}

Step-by-step explanation:

2\frac{1}{2}  * \frac{2}{3}

\frac{5}{2} *\frac{2}{3}

\frac{10}{6}

\frac{5}{3}

1\frac{2}{3} .....<em>final answer.</em>

5 0
2 years ago
How many triangles are formed by the angles and sides-unique triangle, no triangle, or many triangle
kirill115 [55]

No triangle formed

Solution:

Given data:

One angle is 45°

Another angle is 108°

One side is 7 cm

To find how many triangles are formed for the given data.

Let the unknown side of a triangle be x°.

Sum of all the sides of a triangle = 180°

45° + 108° + x° = 180°

⇒ x° = 180° – 45° – 108°

⇒ x° = 27°

There is no such angle can be formed with 27° in the given image.

Hence there is no triangle can be formed.

3 0
3 years ago
Please help pretty basic question thankyou !
Usimov [2.4K]

Ans: about 5000 feet

Explanation: 10000 divided by 2 = 5000 feet (estimate)

8 0
2 years ago
Read 2 more answers
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