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suter [353]
3 years ago
15

Does this equation y=87.2/x represent a direct or inverse variation?

Mathematics
1 answer:
Lorico [155]3 years ago
8 0

Answer:

Inverse relationship

Step-by-step explanation:

The equation we are looking at is;

y = 87.2/x

which implies xy = 87.2

If it was a direct relationship

y = constant * x

if it was inverse, it would have been

y * x = constant

since 87.2 is a constant, the question looks exactly like the second scenario.

This means that what we have is an inverse relationship

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grandymaker [24]

Answer: 2 \°C/min

Step-by-step explanation:

The rate of change is a measure in which one variable is modified in relation to another. In this case we have the variables:

Temperature in \°C

Time in min

Now, to calculate the rate of change, we have to divide one variable by the other. In this case the change in temperature \Delta T divided by the time variation \Delta t.

Hence, assuming the ambient temperature of the glass is 30 \°C and the elapsed time 15 min we have:

\frac{\Delta T}{\Delta t}=\frac{30 \°C}{15 min}=2 \frac{\°C}{min}

5 0
4 years ago
Which set of points represents a function?
tankabanditka [31]

Answer: B

Step-by-step explanation:

3 0
3 years ago
Given that it was less then 80degrees on a given day, what is the probability that it also rained that day?
gladu [14]

The probability that it also rained that day would be 0.30

5 0
3 years ago
Tracy has a total of $100 to spend while shopping. She already spent $45 on clothes. She wants to buys some video games that are
nata0808 [166]

Answer:

3 video games with $4 left over.

Step-by-step explanation:

100 - 45 = 55

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4 0
3 years ago
Read 2 more answers
Can you help me answer the question please :l
liberstina [14]

27

You can find the area of a triangle with base b and height h using this formula.

A=

1

2

bh

The triangle has base b=6miles and height h=9miles.

Find the area.

A

=  

1

2

bh

=  

1

2

(6)(9)

= (3)(9)

= 27

The area of the triangle is 27 square miles.

4 0
3 years ago
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