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OLEGan [10]
3 years ago
12

The length of a rectangle is 3 more inches than the width. Find the length and width of the rectangle is the perimeter of the re

ctangle is 54 inches.
#7 Write an equation that represents the situation. Explain any variable used.


#8 Solve the equation. Show your work. State your solution as a complete sentence.
Mathematics
1 answer:
emmainna [20.7K]3 years ago
7 0

Answer:

12 * 2 + x * 2 = 54

x = 15

x is 15

Step-by-step explanation:

12 * 2 + x * 2 = 54

24 + x * 2 = 54

-24              -24

x * 2 = 30

/2        /2

x = 15

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3 years ago
HELPpPpppppppppppppppppppppppppp and explain
Bess [88]

Answer:

378

Step-by-step explanation:

12 x 18=216

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3 years ago
Find the 5th term of the arithmetic sequence -5x – 9, 2x – 14, 9x – 19,...
grin007 [14]
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4 0
3 years ago
Maya has some books she gives away 26 now she has 36 how many did she start with?​
poizon [28]

Answer:

62

Step-by-step explanation:

26+36=x

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4 0
3 years ago
Identify the ellipses, represented by equations, whose eccentricities are less than 0.5
ozzi

Answer:

See explanation

Step-by-step explanation:

Hello, we cannot see the ellipse equations.

The eccentric of an ellipse is given by:

e =  \frac{c}{a}

Assuming the equations are:

\frac{ {x}^{2} }{25}  +  \frac{ {y}^{2} }{16}  = 1

Then a²=25 and b²=16

{c}^{2}  =  {a}^{2}  -  {b}^{2}

{c}^{2}  = 25 - 16

{c}^{2}  =  {3}^{2}

c = 3

The eccentricity is:

e =  \frac{3}{5}  = 0.6

If the ellipse has equation,

\frac{ {x}^{2} }{ {5}^{2} }  +  \frac{ {y}^{2} }{ {3}^{2} }  = 1

then the this time, we have a=5 and b=3.

This means that:

{c}^{2}  =  {a}^{2}  -  {b}^{2}

{c}^{2}  =  {5}^{2}  -  {3}^{2}

{c}^{2}  =  {4}^{2}

c = 4

c =  \frac{4}{5}  = 0.8

3 0
3 years ago
Read 2 more answers
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