2 years ago

Find x if the perimeter of a rectangle is 140. The rectangle has a length of 5x and a width of 4x-2.

Mathematics

1 answer:

RSB [31]2 years ago

4 0

Answer:

x=8

Step-by-step explanation:

p=(l+b)

140=2(x+4x-2)

140=2(9x-2)

140=18x-4

140+4=18x

144=18x

144/18=x

8=x

You might be interested in

Circular fountain has 18cm base blueprints scale 3cm to 4 feet what is actual area of base after built

GuDViN [60]

$\bf \cfrac{\stackrel{model~cm}{3}}{\stackrel{actual~ft}{4}}\qquad \qquad \cfrac{\stackrel{model}{18}}{\stackrel{actual}{a}}=\cfrac{3}{4}\implies \cfrac{18\cdot 4}{3}=a$

6 0

3 years ago

What is the value of x in the equation X - 2.6 = 1.8?

Ivenika [448]

Step-by-step explanation:

Given

x - 2.6 = 1.8

x = 1.8 + 2.6

x = 4.4

Hope it will help :)

7 0

2 years ago

Read 2 more answers

The slope of the line passing through the points (0, 3) and (5, 7) is

icang [17]

Slope formula: Change in y over change in x

Change in y: +4
Change in x: +5

Slope: 4/5

Hope this helps :)
Please give brainliest

7 0

3 years ago

What is the product of 7x - 4 and 8x + 5

Greeley [361]

Answer:

7x -4= -28

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Organization is the key to an effective speech. Proper organization allows for a logical flow of words and ideas in a speech, ma

GREYUIT [131]

Answer:

This seems more like an answer then a question, did you perhaps mean to put this on someone elses question?

Step-by-step explanation:

4 0

2 years ago