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marin [14]
3 years ago
15

Your record bicycle pace along a favorite trail is 16 mph. On a recent ride, you traveled the 25 mile route in a time of 90 minu

tes. What was your average speed? Did it break your record pace?
Mathematics
2 answers:
lara [203]3 years ago
8 0
Average speed=total distance / total time....

s=25/1.5=50/3mph  (16 2/3 mph)

So you traveled an average of 2/3 mph greater than your record pace...
Mamont248 [21]3 years ago
6 0
Hello :3

d = rt or distance = rate times time. You want your answer in miles per hour so convert 90 minutes to 1.5 hours.  Now plug in the values:
25mi = r*1.5hrs.
r = 25/1.5 = 16.667mph.

This is greater than 16mph, so did you really break your record ?
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trasher [3.6K]

The required simplified expression for 9(m - 9) - 4(10m + 2) is  -31m - 90.

Given that,
To rewrite in simplest terms: 9(m-9)-4(10m+2).


<h3>What is simplification?</h3>

The process in mathematics to operate and interpret the function to make the function simple or more understandable is called simplifying and the process is called simplification.

Question asked to simplify the term 9(m-9)-4(10m+2).

= 9(m - 9) - 4(10m + 2)
= 9m - 81 - 40m - 8
=  -31m - 90

Thus, the required simplified expression for 9(m - 9) - 4(10m + 2) is  -31m - 90.

Learn more about simplification here: brainly.com/question/12501526

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Which expression is equivalent to -6(-2/3+2x)
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Step-by-step explanation:

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After heating up in a teapot, a cup of hot water is poured at a temperature of
xxTIMURxx [149]

Answer:

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Step-by-step explanation:

The desired formula parameters for Newton's Law of Cooling can be found from the given data. Then the completed formula can be used to find the temperature at the specified time.

__

<h3>Given:</h3>

  T(t)=T_a+(T_0-T_a)e^{-kt}\\\\T_a=68,\ T_0=208,\ (t,T)=(3,185)

<h3>Find:</h3>

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<h3>Solution:</h3>

Filling in the given numbers, we have ...

  185 = 68 +(208 -68)e^(-k·3)

  117/140 = e^(-3k) . . . . . subtract 68, divide by 140

  ln(117/140) = -3k . . . . . . take natural logarithms

  k = ln(117/140)/-3 ≈ 0.060

__

The temperature after 4 minutes is about ...

  T(4) = 68 +140e^(-0.060·4) ≈ 68 +140·0.787186

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After 4 minutes, the final temperature is about 178 °F.

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Step-by-step explanation:

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How do I even do this...
Amiraneli [1.4K]

Answer:

I think answer is:

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or,184=2x

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or,x=92

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