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kvv77 [185]
3 years ago
13

Each week, Rosario drives to an ice-skating rink that is 60 miles away. The round-trip takes 2.75 hours. If he averages 55 miles

per hour on his way to the rink, which equation can be used to find x, the number of miles per hour he averages on his way home?
Mathematics
1 answer:
vazorg [7]3 years ago
3 0

Answer:

The answer to your question is x = 4d/t - S1

Step-by-step explanation:

Data

total time = t = 2.75 hours

Initial speed = S1 = 55 mi/h

Final speed = x

distance = d = 60 mi

Formula

speed = distance / time

Average speed = (Initial speed + final speed)/2  or

                          = (S1 + x)/2

Substitution

                             (S1 + x)/2 = 2(d) / t

Solve for x

                             x = (2d/t)2 - S1

Simplification and result

                              x = 4d/t - S1

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<h3>Answer: Choice C) -\infty < y < 2</h3>

This is a more complicated way to write y < 2

The range is the set of all possible y outputs of a function. So we use the graph to see what y values are possible. The graph shows that y can be anything smaller than y = 2. We can't actually reach y = 2 itself due to a horizontal asymptote here.

In interval notation, the answer would be (-\infty, 2) with the curved parenthesis to indicate "do not include y = 2 as part of the range".

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3 years ago
Solve for x. Round your answer to the nearest hundredth.<br> 15.56x - 200 &lt; 758.92
jasenka [17]

Answer: x<61.63

Step-by-step explanation: Add 200 to both sides, giving you 15.56x<958.92 .

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Round to the nearest hundredth giving you x<61.63

8 0
3 years ago
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A compressed air tank carried by scuba divers has a volume of 8.00 L and a pressure of 141 atm at 22.0°C. What is the volume (in
weqwewe [10]

Answer:

Volume of air in the tank =1,044 Liter

Step-by-step explanation:

Given:

Tank volume = 8 Liter

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Temperature = 22°C = 273° + 20° = 295° K

Find:

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Computation:

\frac{Pressure\times Tank\ volume}{Tempreture} =\frac{Pressure\times Air\ volume}{Tempreture}\\\\\frac{141\times 8}{295} =\frac{1\times Air\ volume}{273.15}\\\\\frac{1,128}{295} =\frac{Air\ volume}{273.15}\\\\Air\ volume=1,044.45

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8 0
3 years ago
How can i get my answer for 5+(-34)
julia-pushkina [17]

Hello there.

Answer: ⇒⇒⇒⇒-29

Step-by-step explanation:

Remove parenthesis.

5-34

Subtract the numbers.

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Hope this helps!

Thank you for posting your question at here on brainly.

-Charlie

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Answer:

C) f(x) = 6.25x + 3

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We can input the # of candies for x and see that it provides the exact results every time as seen in the table.

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