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svlad2 [7]
2 years ago
11

What are the solutions to 2x+7X=4? select all that aply

Mathematics
1 answer:
Masja [62]2 years ago
8 0

Answer:

x=4/9, one solution

Step-by-step explanation:

Given: 2x+7x=4

Combine like terms: 9x=4

Divide by 9 on both sides to isolate the variable x: x=4/9

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The lengths and widths of two rectangles are proportional. One
Rashid [163]

The width of the rectangle would be 6 times the first rectangle and the length would be 8 times the first rectangle.

<u>Explanation:</u>

Given:

Two rectangles are proportional.

Length and width of 1 rectangle = 6 : 8

Dimensions of the other rectangle = ?

Let length and width of the other rectangle be x : y

According to the question:

\frac{6}{8} :\frac{x}{y}

\frac{6}{8} X \frac{y}{x}

So, the width of the rectangle would be 6 times the first rectangle and the length would be 8 times the first rectangle.

5 0
3 years ago
D is directly proportional to t2 When t = 4, D = 8 Find the positive value of t when D = 50
alekssr [168]

Answer: either 46 or 25 is your answer

Step-by-step explanation: Brainliest pls

5 0
3 years ago
Read 2 more answers
Write the values that make the denominators zero. then solve the equation?
Olin [163]

Answer:

  denominators are zero for x=1

  there is no solution

Step-by-step explanation:

We suspect your equation is supposed to be ...

  10/(5x -5) +1/5 = 2/(x -1) . . . . . parentheses are required on denominators

The denominators will be zero for x=1.

This version of the equation has no solution. It simplifies to ...

  2/(x-1) + 1/5 = 2/(x -1)

  1/5 = 0 . . . . . subtract 2/(x-1) from both sides

There is no value of x that will make this equation true.

_____

<em>Alternative interpretation</em>

The way your equation is written, it must be interpreted according to the order of operations to be ...

  (10/5)x -5 +1/5 = (2/x) -1 . . . . x=0 makes the denominator zero

  2x -3.8 = 2/x

  2x^2 -3.8x = 2 . . . . multiply by x

  2(x^2 -1.9x +.95^2) = 2 +2(0.95^2)

  (x -0.95)^2 = 1.9025

  x = 0.95 ± √1.9025 ≈ {-0.4293, 2.3293}

4 0
3 years ago
Image attached, please help.
tia_tia [17]

Answer:

 B 3x: 51  = 3x+24: 85

Step-by-step explanation:

Since the triangles are similar

PS             PQ

------- =  -----------

PT                PR


Substitute the values in

3x             3x+24

------- =  -----------

51         85



3x: 51  = 3x+24: 85

4 0
2 years ago
How do you 92 = 8(f + 2) – 4 ?????
Liono4ka [1.6K]
Based on my calculation i know for sure F
would equal 10
8 0
2 years ago
Read 2 more answers
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