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Ksenya-84 [330]
3 years ago
14

2x+6=7x-14algebraic form ​

Mathematics
1 answer:
Alchen [17]3 years ago
7 0

Answer: If you want the answer then it is x=4

Step-by-step explanation:

Subtract 6 from both sides

2x=7x-20

subtract 7x on both sides

-5x=-20

Lastly divide both sides by the same term(-5)

x=4

Hope this helps and a brainliest would be appreciated

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Simplify (3x2 − 2) + (5x2 + 5x − 1)
topjm [15]
5x+13 is the correct answer

4 0
3 years ago
Read 2 more answers
A new car is purchased for $50,000 and over time it’s value depreciates by one half every 5 years. What is the value of the car
Setler79 [48]

The value of the car after 5 years would be $23914.85

<u>Explanation:</u>

Given:

Worth of the new car = $50,000

Every 5 years the value depreciates by 1/2

i.e., every 5 years the value depreciates by 50%

So, we can say that every year the value depreciates by 10%

The worth of the car after 7 years would be

W = C (1 - \frac{D}{100} )^t

where,

W is the depreciated value

C is the current value

D is the depreciation rate

t is the time

Substituting the value in the equation we get:

W = 50000( 1 - \frac{10}{100} )^7\\\\W = 50000 (\frac{9}{10} )^7\\\\W = 23914.85

Therefore, the value of the car after 5 years would be $23914.85

7 0
3 years ago
Find the Surface area AND Volume of the figure. Round to the nearest hundredths.
qwelly [4]

Answer:

SA= 902.88 yd²

V = 1386.24 yd³

Step-by-step explanation:

Surface area

Since the bases are right triangles, you need to find the base of the triangle. Use Pythagorean theorem as you are given the hypotenuse and one leg.

19² = 15.2² + b²

361 = 231.04 + b²

Subtract 231.04 from both sides

b² = 129.96

Root that

b = 11.4

Now that you have the base, find the areas of the triangles and rectangles.

<em>Triangles</em> - (15.2*11.4)1/2 (2)

15.2*11.4 = 173.28

<em>Rectangles </em>- (15.2)(16) = 243.2

(16)(11.4) = 182.4

(16)(19) = 304

Add them all together and the SA equals 902.88 yd²

Volume

V = Bh

V = 1/2(15.2)(11.4)(16)

V = 1/2 (2772.48)

V = 1386.24 yd³

4 0
3 years ago
Is 6,7,13 a right triangle
Scilla [17]

Answer:

No

Step-by-step explanation:

For a right triangle, according to the Pythagorean Theorem, the 2 sides squared must equal the hypotenuse squared. (a^{2} +b^{2} =c^{2})

The hypotenuse is the longest side so 13^{2}=169

6^{2}=36\\7^{2}=49

36 + 49 does not equal 169

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