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AlexFokin [52]
3 years ago
11

The area of a square poster is 31 square inches. find the length of one side of the poster. Explain

Mathematics
1 answer:
kobusy [5.1K]3 years ago
5 0

Answer:

5.57

Step-by-step explanation:

In order to find the are of a square you would use the equation <em>a²</em>. However, since you are finding the length of one side and its a square, you use the equation \sqrt{a}. The area of this square is 31 sq in., so you would replace a with 31. The equation then becomes \sqrt{31}<em>. </em>When out into a calculator, the answer is 5.567764... which rounded up to the nearest hundreth is 5.57.

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A rectangle shed is fenced with 120ft long barbed wire. If length of the shed is twice as long as the width, that is the length?
creativ13 [48]

Answer:

40 ft  

Step-by-step explanation:

<em>Data: </em>

(1) P = 120 ft

(2) l = 2w

<em>Calculations: </em>

(3)  P = 2l + 2w           Substitute (1) and (2) into (3)

  120 = 2(2w) + 2w     Multiply

  120 = 4w +2w           Combine like terms

  120 = 6w                   Divide by 6

(4) w = 20 ft                Substitute (4) into (2)

      l = 2 × 20

      l = 40 ft

<em>Check: </em>

120 = 2×40 + 2×20

120 = 80 + 40

120 = 120

7 0
3 years ago
PLEASE HELP ME SOLVE FOR X
Kitty [74]

Answer:

7. x = 10

8. x = 13

9. x = 17

10. x = 5

11. x = 9

12. x = 11

Step-by-step explanation:

Explanation for Number 7.

The exterior angle is always equl to the sum of the two opposite interior angles.

The two opposite interior angles: 62 and (7x + 14)

The exterior angle: (15x - 4)

So you would set it up like _____ = ______ to solve for x

62 + (7x +14) = 15x - 4

62 + 7x + 14 = 15x - 4

Then move the terms

76 + 7x = 15x - 4

Collect the like terms and Calculate

7x - 15x = -4 - 76

Divide both Sides

-8x = -80

/8       /8

-x = -10

/-1    /-1

x = 10

Hope this helps ^^

5 0
2 years ago
I NEED HELP BEING TIMED
Paladinen [302]

Answer:

18

Step-by-step explanation:

there are 4 cups in a quart. 4*5 1/2=22

22-4=18

ez pz ;)

4 0
3 years ago
Can someone please answer. There's one question. There's a picture. Thank you!
QveST [7]
The volume of a cylinder is r^2\pidh
enter values, then you get 3.53, multiply that by the BTU, the answer is 8888 BTU
5 0
3 years ago
X + y = 8 <br> how do i solve for x
IgorC [24]

Answer:

x = 8 - y

Step by step explaination:

==>x + y = 8

==> x = 8 - y

==> substract the value

==> Done

5 0
2 years ago
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