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3 years ago

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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ikadub [295]

Answer:

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Step-by-step explanation:

if we take n=2 then

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3 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

You and a friend are heading to Frankie's Fun Park (Columbia, SC). You have $100 for the day, and plan to spend your time riding

Rufina [12.5K]

Answer:

$8r + 6s = 100$ --- (a)

$s = -2$ ---- (b)

Step-by-step explanation:

Given

Per ride (r) = $8

Per baseballs (s) = $6

Total = $100

Required

Represent using an equation

If 1 ride is $8.

r rides would be 8r

If 1 baseball is $6

s baseballs would be 6r.

So, total is:

$8r + 6s = 100$

Solving (b):

Value of s when r = 14

$8r + 6s = 100$

Substitute 14 for r

$8 * 14 + 6s = 100$

$112+ 6s = 100$

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$6s = 100 - 112$

$6s = -12$

Solve for s

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4 0

3 years ago

Timmy is selling 87 apples each apple is 1.47 each person gets 2 how many people are there

Alchen [17]

The answer is 43 people

7 0

3 years ago

Could someone please explain this problem to me?

disa [49]

Answer:

8/3

Step-by-step explanation:

Because all 4 angles are congruent, the sides are proportional.

the scale factor is 5/30 = 1/6.

meaning x = 16(1/6)=8/3.

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2 years ago