write the equation or the following situation and solve 25 of a number is equal to 100 increased by 125

How to write four times a number,minus 6,is equal to theee times the number+8 as an equqtion

melomori [17]

Answer:

4x - 6 = 3x + 8.

Step-by-step explanation:

If the number is x then 4 times is 4x , then - 6 gives us 4x - 6.

Similar reasoning gives us 3x + 8.

5 0

3 years ago

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Plsplsplspslspls help ill give you a kiss on the cheek :)

marishachu [46]

Answer:

A)

Important information:

The total cost includes the price of 2 tickets and the price of yogurt.

The total cost: 19.90$

The price of yogurt: 5.5

The price of 2 tickets: unknown

Each of the tickets costs the same amount of money.

Verbal Description:

For the unknown value, the letter x is often selected to represent this unknown value.

Here, we select x that is the price of 1 ticket, then the price of 2 tickets would be 2x.

=> We have the equation: 2x + 5.5 = 19.90

Transfer 5.5 to the right, and then divide both sides by 2, we have:

(2x)/2 = (19.9 - 5.5)/2

Take the simplification, we have:

x = 7.2$ (this is the price of a ticket)

B)

Use the same strategy as shown in A), we have:

Total number of stamps: 100

Mari's number of stamps: x

Carlos's number of stamps: x + 5

Amanda's number of stamps: 3x

=> 3x + x + x + 5 = 100

=> 5x = 100 - 5

=> 5x = 95

=> x = 19

Mari's number of stamps: 19

Carlos's number of stamps: 19 + 5 = 24

Amanda's number of stamps: 3 x 19 = 57

C)

The perimeter of the garden:

perimeter = (width + length) x 2

perimeter = 256

width = w

length = w + 8

=> We have:

256 = (w + w + 8) x 2

<=>256 = (2w + 8) x 2

<=> 256/2 = (2w + 8) x 2/2

<=> 128 = 2w + 8

<=> 128 - 8 = 2w

<=> 120 = 2w

<=> w = 60

=> width of garden: 60

=> length of garden: 60 + 8 = 68

3 0

3 years ago

Match the following items.

WARRIOR [948]

P( two white) = 18/40 * 17/39 = 51/260
P( black then red) = 12/40 * 10/39 = 1/13
P( two black) = 12/40 * 11/39 = 11/130
P( white then black) = 18/40 * 12/39 = 9/65

7 0

3 years ago

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Can someone help please ! , volume= ___ & surface area =____

Juliette [100K]

Step-by-step explanation:

$volume = 4.5 \times 2 \times 2.5 \\ = 22.5feet {}^{3} \\ \\ surface \: area = 4 \times 2 \\ = 8{feet}^{2}$

5 0

2 years ago

A flooring company needs to tile a section of a kitchen that is in the shape of a triangle.

Usimov [2.4K]

Answer: It is possible to determine the height of the triangle by using the formula of the area of a triangle and creating an equation to find the missing value (height). Also, the value of the height is 7ft

Explanation:

The area of a triangle is found by using both the height and the base of a triangle. Indeed, the general formula for this is A( area) = h (height) x b (base) ÷ 2. Now, this general formula can be used to find any of the values missing if two values are known. This means the height can be calculated using the area and the base. To do this, create a simple equation and solve it. The process is shown below:

1. Write the general equation

$A = \frac{h b}{2}$

2. Replace the letters with the values you have

$21 =\frac{6b}{2}$

3. Find the missing value by moving the values to the other side of the equal symbol (=) and changing its symbol

21 x 2 = 6b -For example 2 divided 6b but if it is changed to the other side it needs to multiply

42 = 6 b

42 / 6 = b

b = 7

This means the value of the height is 7 ft. If you want to double-check this, use the original formula:

A = 6 ft x 7 ft / 2

A= 42 $ft^{2}$ / 2

A= 21 $ft^{2}$

6 0

2 years ago