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OverLord2011 [107]
2 years ago
15

Solve for z: 10 = 2 = -25(4z -3)​

Mathematics
2 answers:
Anton [14]2 years ago
5 0

Answer:

z = 13/20

Step-by-step explanation:  

The steps are in the pictures below!

Alex777 [14]2 years ago
4 0
I think z is 13/20 good luck!
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sesenic [268]

Answer:

26. 14 sq.units

27. I think it's near to be 30

28. I think it is the first one

8 0
2 years ago
Read 2 more answers
Please helpp middle school math<br><br>suppose 4&lt;a&lt;7. find all the possible values of 15-2a​
bixtya [17]

9514 1404 393

Answer:

  1 < 15 -2a < 7

Step-by-step explanation:

There are a couple of ways you can do this.

1) Put the minimum and maximum values of a into the expression to see what its corresponding values are:

  15-2a for a=4:

     15-2(4) = 7

  15-2a for a=7:

     15-2(7) = 1

Then ...

  1 < 15-2a < 7

__

2) Solve for a in terms of the value of 15-2a, then impose the limits on a.

  x = 15 -2a

  2a = 15 -x

  a = (15 -x)/2

Now, impose the given limits:

  4 < (15 -x)/2 < 7

  8 < 15 -x < 14 . . . multiply by 2

  -7 < -x < -1 . . . . . . subtract 15

  7 > x > 1 . . . . . . . . multiply by -1

  1 < 15-2a < 7 . . . . . use x=15-2a

_____

The vertical extent of the attached graph is the range of possible values of 15-2a. It goes from 1 to 7.

8 0
3 years ago
Which statement describes the congruent triangles?
spin [16.1K]

Answer:

1. \triangle WXZ \cong \triangle YZX

Step-by-step explanation:

\triangle WXZ \cong \triangle YZX

8 0
3 years ago
Jason tosses a number cube, with faces numbered 1 to 6. If Jason does this 120 times, how many times would you expect the cube t
Mars2501 [29]

Answer:80 times

Step-by-step explanation:

7 0
3 years ago
The sum of two numbers is 3.1. Twice the large number is 7 more than 3 times the smaller number. What are the numbers?
Degger [83]

Let the two numbers be x and y where x is greater than y.

So;

x + y = 3.1 ... (i)

2x - 3y = 7 ... (ii)

This forms a set of simultaneous equations (i) and (ii)

Solving the simultaneous equations by elimination;

We multiply (i) by 2 and (ii)  by 1 to get:

2x + 2y = 6.2 ... (i)

2x - 3y = 7 ... (ii)

Subtracting (i) - (ii) we get;

5y = -0.8

y = -0.8/5 = -0.16

x = 3.1 - -0.16 = 3.26

The numbers are 3.26 and -0.16.


7 0
3 years ago
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