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Kamila [148]
3 years ago
6

Y is inversely proportional to x. When y=25, x=4 Work out y when x=20

Mathematics
1 answer:
ipn [44]3 years ago
8 0

Answer:

y=5 when x=20

Step-by-step explanation:

Using the format for inverse proportions: y=k/x

To find k, substitute 25 in for y and 4 for x to find:

25=k/4 ⇒ k=100

Using this we can substitute k and x in for 100 and 20 to find:

y=100/20 ⇒ y=5

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Step-by-step explanation:

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2. We will use the same process.

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Hope this helps!

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3 years ago
What is the slope of the line? question 3
valentina_108 [34]

Answer:

slope =1

Step-by-step explanation:

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8 0
3 years ago
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Tell me if this is correct?
Rina8888 [55]

Answer:

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6 0
3 years ago
Find the sum of 4x^3+2x^2-4x+3 and 7x^3-4x^2+7x+8
Alchen [17]

The sum means addition.

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9.
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