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Alecsey [184]
3 years ago
12

-2x+7=13x-5 looking for x

Mathematics
2 answers:
noname [10]3 years ago
4 0
Hey!

Let's start writing this problem.
-2x+7=13x-5
Subtract 7 from both sides.
-2x+7-7=13x-5-7
-2x=13x-12
Subtract 13x from both sides.
-2x-13x=13x-12-13x
-15x=-12
Divide both sides by -15.
\frac{-15x}{-15}=\frac{-12}{-15}
x=\frac{4}{5}

Let me know if you have any questions regarding this problem!
Thanks!
-TetraFish
podryga [215]3 years ago
4 0
<span>-2x+7=13x-5
13x + 2x = 7 + 5
15x = 12
    x = 12/15
    x = 4/5</span>
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3 years ago
the length of a new rectangle playing field is 6 yards longer than quadruple the width. if the perimeter of the rectangle plaing
Vika [28.1K]

The length and width of a new rectangle playing field are 214 yards and 52 yards respectively.

<h3>What is the area of the rectangle?</h3>

It is defined as the area occupied by the rectangle in two-dimensional planner geometry.

The area of a rectangle can be calculated using the following formula:

Rectangle area = length x width

We have:

The length of a new rectangle playing field is 6 yards longer than quadruple the width.

Let's suppose the length is l and width is w of a rectangle:

From the problem:

l = 6 + 4w

Perimeter P = 2(l + w)

532 = 2(l + w)

Plug l = 6+4w in the above equation:

532 = 2(6 + 4w + w)

266 = 6 + 5w

260 = 5w

w = 52 yards

l = 6 +4(52) = 214 yards

Thus, the length and width of a new rectangle playing field are 214 yards and 52 yards respectively.

Learn more about the area of rectangle here:

brainly.com/question/15019502

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5 0
2 years ago
Find the distribution of responses about whether there was broken glass at the accident for the subjects in this study using rel
Lemur [1.5K]

Answer:

Probability of having broken glass =  0.1933

Probability of not having broken glass = 0.8067

Step-by-step explanation:

The Treatment table in the file attached to the given question is written out and completed below;

                                                  Treatment

Response       Smashed into             Hit                 Control       Total

      Yes             16                               7                        6             29

       No             34                              43                     44            121

Total:                  50                            50                     50           150

Using relative frequencies,

the distribution of responses about whether there was broken glass at the accident for the subjects in this study can be computed as follows:

Probability of having broken glass = \dfrac{29}{150}

Probability of having broken glass =  0.1933

Probability of not having broken glass = \dfrac{121}{150 }

Probability of not having broken glass = 0.8067

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If you borrow $400 for 3 years at an annual interest rate of 4% how much will you pay altogether?​
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