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Virty [35]
3 years ago
15

1 + 1 2 ⋅ (4x − 6) = −2

Mathematics
2 answers:
Dmitry [639]3 years ago
4 0

1.4375

<u>Step-by-step explanation:</u>

Step 1:

Let the given equation be     1+12(4X-6)=-2

To find X simplification of terms using BODMAS ( Brackets Orders Division Multiplication Addition Subtraction) is done as follows.

Step 2:

Let us expand the equation as 1+ (12*4X)-(12*6)=-2

Step 3:

Let us expand it further as 1+48X-72=-2

Step 4:

To find X segregate X in one side and all other remaining terms in other side as follows

48X=-2+72-1

After the simplification the numerical value is

48X=69

Step 5:

Keep X along one side and bring 48 to the denominator of another side to find X as follows

X=69/48

And the value of X is 1.4375

ivolga24 [154]3 years ago
4 0

Answer:

x = 1 7/16

Step-by-step explanation:

1 + 1 2 ⋅ (4x − 6) = −2

Subtract 1 from each side

1-1 + 1 2 ⋅ (4x − 6) = −2-1

1 2 ⋅ (4x − 6) = −3

Distribute the 12

48x -72 = -3

Add 72 to each side

48x-72+72 = -3+72

48x =69

Divide by 48

48x/48 = 69/48

x =1 21/48

x = 1 7/16

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You want to enlarge a 4 x 5 inch photo to fit into a 1 inch wide frame
skelet666 [1.2K]

The 4•x by 5•x inner dimensions of the 53 inches outer perimeter picture frame, the 1 inch wide frame and the 4 × 5 inch picture to be enlarged, gives;

a. The outer perimeter equation is presented as follows;

18•x + 8 = 53 inches

b. The scale factor required for the enlargement of the picture is 2.5

<h3>Which method can be used to write the equation and find the scale factor?</h3>

The dimensions of the photo = 4 × 5 inch

Width of the frame = 1 inch

Outer perimeter of the frame = 53 inches

The width of the inside of the picture frame = 4•x

The height of the inside of the picture frame = 5•x

a. The equation for the outer perimeter of the picture frame is therefore;

2 × (4•x + 1 + 1) + 2 × (5•x + 1 + 1) = 53

Which gives;

2 × (4•x + 2) + 2 × (5•x + 2) = 53

8•x + 4 + 10•x + 4 = 53

A simplified equation for the outer perimeter of the picture frame is therefore;

  • 18•x + 8 = 53

b. Solving the above equation, we have;

18•x + 8 = 53

18•x = 53 - 8 = 45

18•x = 45

Therefore;

x = 45 ÷ 18 = 2.5

x = 2.5

The width and height of the picture frame are therefore;

Width = 4•x = 4 × 2.5 = 10

Height = 5•x = 5 × 2.5 = 12.5

Which gives;

Width = 10 inches

Height = 12.5 inches

The enlargement factor, sf, is given by the ratio of a side of the picture frame to a side of the picture as follows;

sf = 12.5/5 = 2.5

  • The factor by which to enlarge the picture frame is 2.5

Learn more about linear scale factors here:

brainly.com/question/19381630

#SPJ1

3 0
2 years ago
Need help with math problems give 5 stars and good rating if you do a math problem
Zepler [3.9K]

Answer: I cant see the full question but I would say figure D

Step-by-step explanation:

30/20 in half is 15/10

also between 12/8 and 18/12 is 15/10

6 0
3 years ago
An average of 145 people visited a 4-day exhibition on the first 3 days. Another 205 people visited the exhibition on the fourth
Alenkinab [10]

Answer:

160 visitors.

Step-by-step explanation:

Given:

An average of 145 people visited a 4-day exhibition on the first 3 days, <u>means here average people visited in 3 days is given 145.</u>

Average = 145

Number of people, n = 3

Another 205 people visited the exhibition on the fourth day.

To find:

What is the average number of visitors per day ?

Solution:

<u>First of all we will find total number of people visited in 3 days:-</u>

As we know:

Average=\frac{Sum\ of\ observation}{number\ of\ observation}

145=\frac{Sum\ of\ observation}{3}\\

Multiplying both sides by 3

145\times3=\frac{Sum\ of\ observation}{3}\times3\\435=Sum\ of\ observations

Thus, we found that total number of people visited in 3 days is 435 and as 205 people visited in fourth day, then total number of people increased to

435 + 205 = 640

Now, sum of total observations( total number of people ) = 640

And number of observation ( number of days ) = 4

Now, we will calculate average number of visitors visit per day :-

Average=\frac{Sum\ of\ observation}{number\ of\ observation}

             =\frac{640}{4} \\=160\ visitors

Thus, the average number of visitors per day is 160 visitors.

             

6 0
3 years ago
You go out to dinner with 2 friends. The bill was $35.60, and you
const2013 [10]

Answer:

$14.24

Step-by-step explanation:

5 0
2 years ago
What is the area of the rhombus?
Mrac [35]
From the question we know that:
the first diagonal = 3 + 3 = 6 units length
the second diagonal = 4 + 4 = 8 units length

The area of a rhombus could be determined using
a = 1/2 × d₁ × d₂

Input the numbers to the formula
a = 1/2 × 6 × 8
a = 1/2 × 48
a = 24
The area is 24 units area
6 0
4 years ago
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