All categories

3 years ago

• Write an expression for the perimeter of a

Mathematics

1 answer:

Ksenya-84 [330]3 years ago

6 0

Answer:

10 (X+1)

Step-by-step explanation:

Length = 2x + 5

Width = 3x

Perimeter of rectangle= 2(L + W)

P= $2\times (2x+5+3x)$

P= $2\times (5x+ 5)$

Now, taking 5 as common

P= $2\times 5 (x + 1)$

∴ Perimeter of rectangle= $10\times (x+1)$

You might be interested in

Find the greatest common factor of 66a3b3 and 99a4.

yan [13]

$66a^3b^3=\boxed{33a^3}\cdot2b^3\\\\99a^4=\boxed{33a^3}\cdot 3a\\\\GCF(66a^3b^3;\ 99a^4)=\boxed{33a^3}$

4 0

3 years ago

Pls pls help with this math

bixtya [17]

Answer:

7, -1

Step-by-step explanation:

x^2 - 6x + 7 = 0

(x - 7)(x + 1) = 0

==> x = 7, x = -1

5 0

3 years ago

Read 2 more answers

What is the solution to 0.4(12 – 3x) = 0.3(12x – 16)?

TiliK225 [7]

Answer:

x = 2

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtract Property of Equality

Step-by-step explanation:

Step 1: Define

0.4(12 - 3x) = 0.3(12x - 16)

Step 2: Solve for x

Distribute: 4.8 - 1.2x = 3.6x - 4.8
Add 1.2x on both sides: 4.8 = 4.8x - 4.8
Add 4.8 on both sides: 9.6 = 4.8x
Divide 4.8 on both sides: 2 = x
Rewrite: x = 2

8 0

3 years ago

142 students are going on a field trip. There will be six drivers, and two different types of vehicles. A bus can hold 51 people

otez555 [7]

Answer: 2 buses and 4 vans would be needed

Step-by-step explanation:

Let x represent the number of buses that would be needed.

Let y represent the number of vans that would be needed.

There will be six drivers, and two different types of vehicles. This means that

x + y = 6

142 students are going on a field trip. A bus can hold 51 people while a van can hold 10. This means that

51x + 10y = 142 - - - - - - - - - - - 1

Substituting x = 6 - y into equation 1, it becomes

51(6 - y) + 10y = 142

306 - 51y + 10y = 142

- 51y + 10y = 142 - 306

- 41y = - 164

y = - 164/ - 41

y = 4

x = 6 - y = 6 - 4

x = 2

8 0

3 years ago

Consider the line y=8x - 4.

Kamila [148]

Answer:

Parallel - 8

Perpendicular - -1/8

Step-by-step explanation:

If a line is parallel to another then they have the same slope

If a line is perpendicular to another line then the slope is just flipped and so is the sign

8 0

2 years ago