X+3<br> Solve for x in the following figure ????

Consider the diagram.

algol [13]

Answer: 9.22 meters long

Step-by-step explanation: I did the assignment

4 0

3 years ago

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a rectangle has a perimeter of 76 cm. Its length is 5 more that twice its width. The system of equation below can be use to fine

Juliette [100K]

Answer:

$l=27cm$ and $w=11cm$

Step-by-step explanation:

the perimeter of a rectangle is given by the following equation:

$p=2(l+w)=2l+2w$

if a rectangle has a perimeter of 76cm and its length is 5 plus the double of its width we can use a system of equations to find the length $l$ , and the width $w$ .

For the perimeter of the rectangle

$2l+2w=76$ where $l$ is its length, and $w$ is its width, 76 is the perimeter of the rectangle in cm.

We know that the lengh of the rectangle is 5 plus the double of its width, writing the equation:

$l=5+2w$

Substituting the equation above in $2l+2w=76$

$2(5+2w)+2w=76\\10+4w+2w=76\\6w=76-10\\w=66/6\\w=11$

We got that the rectangle width is w=11cm

Substituting w in the equation $2l+2w=76$

$2l+2(11)=76\\2l+22=76\\l=(76-22)/2=54/2\\l=27$

We got that the rectangle length is l=27cm

Verifying the values obtained

$2l+2w=76$ with l=27 and w=11

$2(27)+2(11)=76$

$54+22=76$

Satisfying the equation

5 0

3 years ago

Original price is $16.45, markdown is 33%. The sales price is (only use numbers): $

brilliants [131]

Answer:

$11.02

Step-by-step explanation:

3 0

3 years ago

Factorise 2x^2 -x-21

yaroslaw [1]

Answer:

(x + 3) × (2x - 7)

Step-by-step explanation:

2x² - x - 21

Write as a difference

2x² + 6x - 7x - 21

Factor the expressions

2x × (x + 3) - 7 (x + 3)

Factor the expression

(x +3) × (2x - 7)

8 0

3 years ago

In 2013, the population of China was estimated to be 1,360,760,100. Round off the number of people

Aleksandr [31]

Answer:

a) 1,360,760,000

b) 1,361,000,000

c) 1,400,000,000

d) 1,360,800,000

Step-by-step explanation:

We have to round off the given population number to certain digits.

The following are the rules to round of a number:

First identify the digit to be rounded.
If this digit is followed by 5,6,7,8,9 then we round up the number that is increase the digit by 1 and all the numbers to right becomes zero.
If this digit is followed by 0,1,2,3,4 then we round down the number that is decrease the digit by 1 and all the numbers to right becomes zero.

a) to the nearest thousand.

Thousands place: 0

Right Digit: 1

We round down the number

Rounded to the nearest 1,000 or t he thousands Place = 1,360,760,000

b) to the nearest million

Millions place: 0

Right Digit: 7

We round up the number

Rounded to the nearest million places = 1,361,000,000

c) to nearest hundred million

Hundred million place: 3

Right Digit: 6

We round up the number

Rounded to the nearest million places = 1,400,000,000

d) to the nearest hundred thousand.

hundred thousand place: 7

Right Digit: 6

We round up the number

Rounded to the nearest million places = 1,360,800,000

7 0

3 years ago

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X+3 Solve for x in the following figure ????