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lina2011 [118]
3 years ago
10

⚠️HELPP PLEASE⚠️ Find the length of side A

Mathematics
1 answer:
exis [7]3 years ago
4 0

Answer:

pretty sure that's C

Step-by-step explanation:

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How do i solve this.
nignag [31]

Let us set up some variables:

  • L: Length
  • W: Width

Now let us set up some equations based on the facts:

  • length of rectangle is 4 times its width --> L = 4W
  • perimeter of rectangle is 80 --> 2L + 2W = 80

Equations:

   L = 4W     -- equation 1

   2L + 2W = 80 -- equation 2

   Plug the value of L from equation 1 into equation 2

    2(4W) + 2W = 80

     8W + 2W = 80

        10W = 80

           W = 8 -- equation 3

   

   Plug the value of W from equation 3 into equation 1:

    L = 4W = 4 * 8 = 32

Therefore the length is 32 and the width is 8.

Hope that helps!

     

   

4 0
2 years ago
Help, I’ll give brainliest, explain
Irina18 [472]

Answer:

A 48

D 0

O 7.5 (fraction form: 7 1/2)

E 21

Next line

E 34

N 36.8 (fraction form: 36 4/5)

L 9

T 8

Step-by-step explanation:

A (a)(c)

A (12)(4)

A 48

D 48 - (a + c)

D 48 - (12 + 4)

D 48 - 48

D 0

O (5a)/8

O 5(12)/8

O 60/8

O 7.5

E (ab)/c

E (12)(7)/(4)

E 84/4

E 21

Next line

E 2b + 5c

E 2(7) + 5(4)

E 14 + 20

E 34

N c(9.2)

N 4(9.2)

N 36.8

L 72/2c

L 72/2(4)

L 72/8

L 9

T (2/3)a

T (2/3)(12)

T 8

5 0
2 years ago
What is (2/3 x 3/5) - (3/4 x 1/6)
Kaylis [27]

Answer:

2/3×3/5=2/3. 3/4×1/6=1/8

2/3-1/8=11/40

8 0
3 years ago
Read 2 more answers
What's an expression that represents 5 less than the product of 7 and a number?
Butoxors [25]

Answer:

7x-5

Step-by-step explanation:

7 0
2 years ago
Seven cereal bars are shared equally by 3 students. How many does each student receive?I really need help and my teacher won't h
Katarina [22]

Answer:

Each student gets 2 1/3

Step-by-step explanation:

So you would divide 7 by 3, which you can't...so 6 divided by 3 is 2, and when you split the last one into thirds you can each have 1/3. Add the sections together, and each person gets 2 1/3

7 0
2 years ago
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