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Maksim231197 [3]
3 years ago
10

4s - 13 = 51 SHOW ALL WORK

Mathematics
1 answer:
RSB [31]3 years ago
4 0

Answer:

you have to get rid of the numbers and then get rid of the letters until only s is left

Step-by-step explanation:

4s - 13= 51

51+13= 64

4s= 64

64÷4 = 16

s= 16

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Hey Guys! Im new here and hoping to really get to use this website! Hope you guys could answer my question!
salantis [7]

Answer:

Width =9 cm

Length =6 cm

Step-by-step explanation:

Let x be width, then length is x − 3

Let area be E. Then we have: E = x ⋅ (x −3)

54= x^2-3x

x^2-3x-54=0

We then do the Discriminant of the equation:

D=9+216

D=225

X1=3+15 over 2. which is 9

X2= 3-15. over 2. which is -6 Which is declined, since we can't have negative width and length.

Therefore x is 9. So width  

So width  = x = 9cm and length is x-3 = 9-3cm=6 cm

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4 years ago
A suitcase is a rectangular prism whose dimensions are 1 &1/4 feet by 1 & 3/4 feet by 1 & 1/4 feet.Find the volume o
PolarNik [594]
1 1/4=5/4
1 3/4=7/4
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4 years ago
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SOVA2 [1]

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1) Substitution from definition.

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3 years ago
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ahrayia [7]

Answer:

(\sqrt{30}-2\sqrt{5})\ m

Step-by-step explanation:

we know that

The length of the side, s, of a cube with a surface area, SA is equal to the formula

s=\sqrt{\frac{SA}{6}}

Step 1

Find the length of the side, s, of a cube with a surface area of 180\ m^{2}

we have

SA=180\ m^{2}

substitute in the formula

s=\sqrt{\frac{180}{6}}

s=\sqrt{30}\ m

Step 2

Find the length of the side, s, of a cube with a surface area of 120\ m^{2}

we have

SA=120\ m^{2}

substitute in the formula

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Step 3

Find the difference of the length sides

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Answer:

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