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ss7ja [257]
3 years ago
6

Q2) If z is directly proportional to x and z = 12 when x = 3, find the value of x when z = 18.

Mathematics
2 answers:
LenKa [72]3 years ago
4 0

Answer:

4.5

Step-by-step explanation:

→ Set up the direct proportion equation

z = kx

→ Substitute in the values

12 = 3k

→ Divide both sides by 3 to isolate k

4 = k

→ Substitute the value of k back into the original direct proportion equation

z = 4x

→ Substitute the value of z in

18 = 4x

→ Divide both sides by 4 to isolate x

4.5 = x

stepladder [879]3 years ago
4 0

Answer:

4.5

Step-by-step explanation:

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7 pounds of steak cost $10.08. What is the price per ounce
Alexandra [31]

Answer:

1.44

Step-by-step explanation:

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6 0
3 years ago
Use the graph below for this question:
skelet666 [1.2K]

The average rate of change of a function f(x) on the interval [a,b] is given by:

f(b) - f(a)

-------------

  b-a


In this specific case, a=2 and b = 3.

f(2) = -3 and f(3) = -1.

Thus, the average rate of change here of f(x) on the interval [2,3] is:

-1 - (- 3)             2

------------- = ------------- = 2 (answer)

    3-2               1

5 0
3 years ago
Which arrow is pointing to the horizontal axis title?
cricket20 [7]

Answer:

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Step-by-step explanation:

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Arlecino [84]

Answer:

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3 0
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The sum of two numbers is 50 and the difference is 4
juin [17]

Step-by-step explanation:

let the 2 numbers be x and x + 4 as their deference is 4.

their sum = 50

now,

→ x + x + 4 = 50

→ 2x + 4 = 50

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x = 23

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hope this answer helps you dear...take care and may u have a great day ahead!

3 0
2 years ago
Read 2 more answers
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