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Ivanshal [37]
3 years ago
7

Lisa is choosing between two exercise routines. In Routine #1, she does only running, burning 8.5 calories per minute. In Routin

e #2, she burns 28 calories walking. She then runs at a rate that burns 2.9 calories per minute. For what amounts of time spent running will Routine #1 burn at least as many calories as Routine #2? Use t for the number of minutes spent running, and solve your inequaliy for t
Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
8 0
Let, the number of minutes in running = t

Inequality would be: 8.5t ≥ 28 + 2.9t
Subtract 2.9t from both sides, 

8.5t - 2.9t ≥ 28 + 2.9t - 2.9t
5.6t ≥ 28

Now, divide by 5.6
5.6t/5.6 ≥ 28/5.6
t ≥ 5

In short, Your Answer would be at-least 5 minutes

Hope this helps!

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On a very cold morning, it was -8°F. As the day went on, the temperature rose 2 degrees each hour. Which equation shows the temp
bekas [8.4K]

It would be -8 + 2x

There you go.

4 0
4 years ago
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Find m∠KHG.<br><br> m∠IHG = 161°<br> m∠IHK = (3x + 4)°<br> m∠KHG = (7x + 7)° <br><br> help??
Mrac [35]

For this case we have to, if we look at the figure, the IHG angle is given by the sum of the IHK and KHG angles.

We have to:

IHG = 161

So, as mentioned above we have:

(3x + 4) + (7x + 7) = 161\\3x + 4 + 7x + 7 = 161

We add similar terms:

10x + 11 = 161\\10x = 161-11\\10x = 150\\x = \frac {150} {10}\\x = 15

Thus, the KHG angle is given by:

7 (15) + 7 = 105 + 7 = 112

Answer:

The KHG angle is 112 degrees

5 0
3 years ago
I need this problem simplified thanks! :)
m_a_m_a [10]
I dont understand that

7 0
3 years ago
Determine the equation of the graph and select the correct answer below.
stiks02 [169]

Answer:

If I remember the format correctly, then I think it's y=(x-1)^2-3

Step-by-step explanation:

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8 0
4 years ago
Read 2 more answers
Pretty PLEASE HELP ASAP, THANKS! WILL REWARD BRAINLIEST!!
shutvik [7]
You can rewrite it as
(2/3 )•(10^(13-8))= (2/3)• 10^5 ~ 0.67•10^5=
0.67•10•10^4= 6.7•10^4

Answer $6.7•10^4
5 0
4 years ago
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