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ololo11 [35]
3 years ago
9

The perimeter of a triangle is 93 feet. Side a of the triangle is twice as long as side b. Side c is 3 feet longer than side a.

Find the length of each side.
Mathematics
1 answer:
DIA [1.3K]3 years ago
3 0

Answer:

a= 73.2

b =36.6

c = 76.2

Step-by-step explanation:

Perimeter of the triangle is the distance round the triangle.

Let the 3 sides be a, b and c

Side a of the triangle is twice as long as side b. This means

a = 2b

Side c is 3 feet longer than side a. This means

c = a + 3

The perimeter of the triangle is 93 feets. Formula for finding the perimeter of the triangle is

(a + b + c)/2

Therefore,

93 = (2b + b + 2b + 3)/2

93 = (5b + 3)/2

5b + 3 = 93 × 2 = 186

5b = 186 - 3 = 183

b = 183/5 = 36.6

a = 2b = 2 × 36.6 = 73.2

c = a + 3 = 73.2 +3 = 76.2

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10. Both x and y vary inversely with each other. When x is 10, y is 6,which of the following is not a possible pair of correspon
elena55 [62]

9514 1404 393

Answer:

  D) 45 and 1.2

Step-by-step explanation:

The "varies inversely" relationship is described by the equation ...

  y = k/x . . . . . . y varies inversely with x (and vice versa)

The value of k can be found from known values of x and y:

  xy = k . . . . . . multiply the above equation by x

  (10)(6) = k = 60 . . . . using the given values

__

To check if a given pair of numbers satisfies ...

  y = 60/x

you can multiply them together to see if the product is 60.

  (A) 12×5 = 60

  (B) 15×4 = 60

  (C) 25×2.4 = 60

  (D) 45×1.2 = 54 . . . . . not a possible pair of corresponding values.

45 and 1.2 are not a possible solution for x and y.

8 0
3 years ago
850-53x m= 720-39x m
insens350 [35]

Answer:

9.286

Step-by-step explanation:

I'm not guaranteeing this answer. If this is correctly written without any indication of how to deal with x, then here is as much as you can do.

850-53x m= 720-39x m                         Subtract 720 from both sides.

850 - 720 - 53x = 720 - 720 - 39xm      Combine

- 53xm + 130 = - 39xm                             Add 53x

-53x+53xm + 130 = -39x + 53xm            Combine

                      130 = 14xm                         Divide by 14

xm = 130/14

xm = 9.28

===============================

You can use the same steps above. I'm abbreviating the steps because they are the same.

I'm sure there is more to the problem, but I can't imagine what it is. If you have additional directions, put it under this answer. I will get it as a comment.

850-53m= 720-39m

850 - 720 - 53m = - 39m

130 - 53m = - 39m

130 = -39m + 53m

130 = 14m

130/14 = m

m =9.286

4 0
3 years ago
The capacity of a jug is 6L. Kerry needs 5L of juice for a party. how many jugs will she have to make?
zimovet [89]

Answer:

One

Step-by-step explanation:

Given data

The capacity of Jug= 6L

Needed capacity of Juice= 5L

Hence  one Jug of Juice will be enough because one jug of juice will cover for 6L and 1 L will actually remain

5 0
3 years ago
Given 2x – 4y= 4:<br> Transform this equation into slope-intercept form
jeka57 [31]

Answer:

y=1/2x-1

Step-by-step explanation:

-4y=4-2x

4y=4-2x

y=-1+1/2x

y=1/2x-1

8 0
4 years ago
PLZ ANSWER 6 AND 7. SHOW YOUR WORK TOO!!
anygoal [31]

6) subtract 16 on both sides

then it should be x/4>18

then you would times 18 by 4 and get

c as the answer



7) the answer is d.

because 52-12 is 40 and 52/4 is 13

8 0
3 years ago
Read 2 more answers
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