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postnew [5]
3 years ago
8

será que me pueden ayudar con las siguiente ecuaciones y con verificación por favor gracias son 8 ecuaciones 1) 3x+7=-5 2) 4=3x+

1/4 3) -2/5+2x=4-3x 4) 5x+3/8=3/4 5) 3/5x+4=-3/6 6) 3x-4/9=-7/2-4x 7) 5/6x+5/3=5/4 8) 4/3=3x-1/2
Mathematics
1 answer:
Musya8 [376]3 years ago
7 0

Answer:

see below

Step-by-step explanation:

1. 2+5x=4x+7

5x-4x=7-2

x=5

2. 4x-5=1+3x

4x-3x=1+5

x=6

3. 8-5x-4=-6x+6

-5x+6x=6-8+4

x=2

4. 4x+8+2x=5x-1

6x-5x=-1-8

x= -9

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of the 125 guests invited to a wedding ,104 attended the wedding .What percent of the invited guests attended the wedding
pashok25 [27]
\frac{104}{125} =\frac{104\times8}{125\times8}=\frac{832}{1000}

832/1000 = 0.832 = 0.832 * 100% = 83.2%

83.2% of the invited guests attended the wedding.

5 0
3 years ago
The width and the length of a rectangle are consecutive even integers. If the width is decreased by 3 inches, then the area of t
Yuliya22 [10]

The original are would be 48.

Since we know that the length and width are two consecutive even integers, we can model them as follows:

Width = x

Length = x + 2

This works because no matter what even number is put in for x, the length will also be even.

Now we know if we subtract 3 from the width, we have a new rectangle that gives us an area of 24 inches. Therefore, our new triangle has the following:

Width: x - 3

Length: x + 2

Area: 24

And we can plug this into the equation.

Length* Width = Area

(x + 2)(x - 3) = 24

x^2 - x - 6 = 24

x^2 - x - 30 = 0

This is not a quadratic that we can factor to show the following:

(x - 6)(x + 5) = 0

This gives us the answers of x = 6 and x = -5. Since a side can't be negative, we throw out the x = -5 and the answer is x = 6.

So if we go back to the original rectangle, we know:

Width = x = 6

Length = x + 2 = 8

Area = 6*8 = 48

7 0
3 years ago
(100 POINTS) Instructions:
erma4kov [3.2K]

Answer:

Length: 15

Width: 12

Height: 13

Step-by-step explanation:

Hope this helps!

(Mark as brainleist plz)

4 0
2 years ago
How can you rewrite P(z £ –1.75) in order to find the answer? P(z £ 1.75) P(z ³ -1.75) 1 - P(z £ -1.75) 1 - P(z £ 1.75)
Fudgin [204]
To rewrite it the answer is 1-P(z 1.75) D

5 0
3 years ago
Read 2 more answers
What is the equation of the line passing through points (1,1) and (3,-5)
seraphim [82]

Answer:

m=-3

Step-by-step explanation:

5 0
3 years ago
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