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siniylev [52]
2 years ago
10

Evaluate the expression for x = 5, y = 3, and z=1/4 .

Mathematics
2 answers:
stealth61 [152]2 years ago
7 0
Answer: 22

Work: 5(5) - 6(3) + 20(1/4) * 4(3) * (.25)
25 - 18 + 5 * 12 * (.25)
7 + 60 * (.25)
7 + 15
22
Helga [31]2 years ago
4 0

Answer:

22

Step-by-step explanation:

5(5) - 6(3) + 20(1/4)4(3)(1/4)

25 - 18 + 5*12*0.25

25 - 18 + 60*0.25

25 - 18 + 15

7 + 15

22

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What is -5x + 15 = 35 - 10x
dezoksy [38]

Answer:

   x = 4

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    -5*x+15-(35-10*x)=0

Pull out like factors :

             5x - 20  =   5 • (x - 4)

_________________________________________

Solve :    5   =  0

This equation has no solution.

A a non-zero constant never equals zero.

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Solve  :    x-4 = 0

Add  4  to both sides of the equation :

                     x = 4

3 0
3 years ago
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Answer:

a. 5:2

Step-by-step explanation:

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2 years ago
Malkia is thinking of a mystery number. She cuts it in half then adds 5. The result is 24. Determine the mystery number. I need
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GarryVolchara [31]

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Answer:

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Step-by-step explanation:

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