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tiny-mole [99]
2 years ago
9

S is inversely proportional to t When s = 0.5, t = 7 Work out s when t = 0.8

Mathematics
1 answer:
defon2 years ago
5 0

Given:

s is inversely proportional to t.

When s = 0.5, t = 7.

To find:

The value of s when t=0.8.

Solution:

s is inversely proportional to t.

s\propto \dfrac{1}{t}

s=\dfrac{k}{t}       ...(i)

Where, k is the constant of proportionality.

Putting s=0.5 and t=7, we get

0.5=\dfrac{k}{7}

0.5\times 7=k

3.5=k

Putting k=3.5 in (i), we get

s=\dfrac{3.5}{t}

This is the equation of proportionality.

Putting t=0.8, we get

s=\dfrac{3.5}{0.8}

s=4.375


Therefore, the value of s is 4.375 when t=0.8.

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Brianna and Holden hiked 6 2/9 miles on Monday and 2 2/3 miles on Tuesday. How many times as far did they hike on Monday as they
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Answer:

  2 1/3 times as far

Step-by-step explanation:

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6 0
3 years ago
Add 2f+5g+7h and 3f+6g+8h
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5f+11g+15h



Explanation:

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6 0
3 years ago
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Can someone please help me on this problem? I need help on it please!!
8_murik_8 [283]

Answer:

60 m/h

Step-by-step explanation:

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2. total time is time1 (for 84 miles)+time2 (for 130 miles)=time (4 hours);

3. the time for the first 84 mi. is time1=84/S;

4. the time for the rest 130 mi. is time2=130/(S-10);

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\left[\begin{array}{ccc}s=60\\s=3.5\end{array}

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3 years ago
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