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AleksAgata [21]
3 years ago
9

What is 6x +7=8x -15 solved.

Mathematics
2 answers:
Nostrana [21]3 years ago
7 0

Answer:

11 =x

Step-by-step explanation:

6x +7=8x -15

Subtract 6x from each side

6x-6x +7=8x-6x -15

7 = 2x -15

Add 15 to each side

7+15 = 2x-15+15

22 =2x

Divide each side by 2

22/2 = 2x/2

11 =x

skelet666 [1.2K]3 years ago
6 0

Answer:

11

Step-by-step explanation:

6x+7=8x-15

7=2x+15

22=2x

11=x

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Answer:

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In case of two equivalent fractions, the product of the numerator of one fraction and denominator of the second fraction is equal to the product of the denominator of the first fraction and numerator of the second fraction.

A fraction is said to be in form if its numerator and denominator are 5. To add or subtract like fractions, we add or subtract the keeping the same.

Step-by-step explanation:

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6 0
3 years ago
The figure is made up of two shapes a semi circle on a rectangle what is the exact perimeter of the
Llana [10]

The perimeter of the composite shape is: (3π + 12)mm

<h3>What is a semicircle?</h3>

A semicircle is a part of a circle cut through its diameter.

Analysis:

perimeter of a semicircle = πr

where r = 6/2 = 3mm

perimeter of a semicircle = π(3)  = 3π

perimeter of incomplete rectangle = L+2B, L = 6mm, B = 3mm

perimeter of rectangle = 6mm +2 x 3= 12mm

perimeter of shape = (3π+12)mm

In conclusion, the perimeter of the rectangle is (3π+12)mm

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3 0
2 years ago
1. Using the letters in the word FABRIC, find the number of permutations that can be formed using 2 letters at a time. Show your
Lisa [10]

1. Each letter is paired with each of the other letters to produce all the permutations of 2 letters. There are 6×5 = 30 of them.

FA FB FR FI FC .. A.F AB AR AI AC .. BF BA BR BI BC .. RF RA RB RI RC .. IF IA IB IR IC .. CF CA CB CR CI

2. The linear regression function of a graphing calculator can be used to find the line of best fit. Generally, this involves entering the given coordinates and invoking the appropriate regression calculation.

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7 0
3 years ago
Alanna is painting a border along the top of a wall. the border consists of kite-shaped figures as shown. 3 kites are connected
Dmitrij [34]

If each kite measures 6 inches across and 12 inches long. The square inches of the wall will be:  864 square inches.

<h3> Square inches of the wal</h3>

Diagonals= d1 and d2

First step

Area =(1/2)×(d1×d2)

Area=(1/2)×(6×12)

Area =36 in²

Second step

1 feet = 12 inches

12 feet =  12×12

12 feet = 144 in

Third step

Number of square inches=(144/6)×36

Number of square inches=24×36

Number of square inches= 864 square inches

Therefore the square inches of the wall will be: 864 square inches.

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6 0
2 years ago
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Suppose that prices of recently sold homes in one neighborhood have a mean of $220,000 with a standard deviation of $7450. Using
GenaCL600 [577]

The minimum percentage of recently sold homes with prices between $197,650 and $242,350 is 88.9%.

<h3>What is Mean ?</h3>

Mean is the ratio of the sum of all the data points to the number of data points.

It is given that

mean of $220,000 with a standard deviation of $7450.

The range is given , let the range is represented by x - --y

It is given that x = 197650 and y = 242350

Let the number of homes sold is k

To determine the value of k

upper level = (y-mean)/standard deviation = (242350-220000)/7450 = 3

lower level = (mean-x)/standard deviation = (220000-197650)/7450 = 3

probability = 1-(1/k²)

k= 3

= 1 - (1/3^2)

= 1 - 1/9

= 0.889 or 88.9%

So, the minimum percentage of recently sold homes with prices between $197,650 and $242,350 is 88.9%.

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5 0
2 years ago
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