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DENIUS [597]
3 years ago
9

Li walks at a constant rate of 7 ft. in 4 seconds. The table shows the relationship of feet to seconds. What is the constant of

proportionality for the relationship of feet to minutes? (1 minute=60 seconds) *
10 points
Mathematics
1 answer:
Kisachek [45]3 years ago
4 0

Answer:

The rate is 1.75 feet/seconds or 105 feet/minute.

Step-by-step explanation:

Given that,

Li walks at a constant rate of 7 feet in 4 seconds

To find the constant of proportionality, divide 7 feet by 4 seconds.

So,

k=\dfrac{7\ \text{feet}}{4\ \text{seconds}}\\\\k=1.75\ \text{ft/s}

1.75 ft/s is the constant of proportionality

We know that, 1 minute = 60 seconds

k = 105 feet/minute

So, the rate is 1.75 feet/seconds or 105 feet/minute.

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Step-by-step explanation:

Balanced chemical reaction is written first to know the number of moles taking part in original reaction.

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Given:

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First the number of moles of HF in 4.65 grams is calculated by using the formula:

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putting the values in the above equation number of moles can be found.

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