All categories

2 years ago

Write an expression to represent the perimeter of the rectangle:2/3x+101/3x+5

Mathematics

1 answer:

Sladkaya [172]2 years ago

3 0

Answer:

2x+30

Step-by-step explanation:

The formula for perimeter is

P = 2(l+w)

= 2(2/3 x+10 + 1/3 x+5)

= 2(2/3 x + 1/3 x+10+5)

= 2 (x+15)

Distribute

2x+30

You might be interested in

Factor completely. 25w² + 60w + 36 Express the answer in the form (aw+b) 2 .

Lana71 [14]

<span>25w² + 60w + 36
= (5w + 6)^2

hope it helps</span>

6 0

3 years ago

Help plz this is multiple choice so just choose the answer u think is correct.

babymother [125]

the answer is 34.83 I believe

5 0

2 years ago

If you have a room with four walls and a ceiling, how would you label the walls (plane, line, or point)? How would you label

Sergio039 [100]

Walls = Plane

Intersection = line

Corner = Point

3 0

3 years ago

1. Write an expression using parentheses to describe the following word problems.

Mandarinka [93]

Answer:

a. (10-3)x3

b. (14+10)÷8

4 0

3 years ago

A, B and C lie on a straight line segment.A, E and D lie on a straight line segment.BE = 1.8m, CD = 9m and BC = 1.7m.Work out th

katrin2010 [14]

The relationship between the points is an illustration of similar shapes.

The length of AB is 0.43

The given parameters are:

$\mathbf{BE = 1.8}$

$\mathbf{CD = 9}$

$\mathbf{BC = 1.7}$

From the question (see attachment), we have the following observations:

BE corresponds to CD
AB corresponds to AC

So, the equivalent ratio is:

$\mathbf{AB:BE =AC:CD }$

Substitute known values

$\mathbf{AB:1.8 =AC:9 }$

Express as fractions

$\mathbf{\frac{AB}{1.8} =\frac{AC}{9} }$

Multiply both sides by 1.8

$\mathbf{AB =\frac{AC}{5} }$

So, we have:

$\mathbf{AB =\frac{AB + BC}{5} }$

Substitute 1.7 for BC

$\mathbf{AB =\frac{AB + 1.7}{5} }$

Multiply through by 5

$\mathbf{5AB =AB + 1.7}$

Collect like terms

$\mathbf{5AB -AB =1.7}$

$\mathbf{4AB =1.7}$

Divide both sides by 4

$\mathbf{AB=0.425}$

Approximate

$\mathbf{AB=0.43}$

Hence, the length of AB is 0.43