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3 years ago

12

Carolyn was training for cross-country season on an indoor track. During her workout, she ran 24 laps around a track that measur

ed 110 meters. What was the total distance Carolyn ran in kilometers?

1 answer:

ollegr [7]3 years ago

6 0

Answer:

2.64 km

Step-by-step explanation:

24*110=2640 meters

2640/1000=2.64 km

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jose bought 4 comic books and 2 nonfiction books. the 4 comic books cost him 8y dollars.if the cost of one nonfiction book is (3

professor190 [17]

write out the equation:

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8=3+7
8=10

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7 0

3 years ago

6x + 4y = -14<br> -X-5y=11

kumpel [21]

Answer:

x= -1; y= -2

Step-by-step explanation:

A: 6x+4y= -14

B: -x-5y=11

6B is : -6x-30y=66

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so y= -2

so A becomes : 6x+4.(-2)= -14

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4 0

3 years ago

Find x- and y-intercepts. Write ordered pairs representing the points where the line crosses the axes. Note x-intercept is a poi

GenaCL600 [577]

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3 years ago

Read 2 more answers

If you can explain your answer that’d be great!! Thank you!

Rasek [7]

Answer:

$A(t)=A_{0}e^{\frac{ln(\frac{1}{2})}{22}t}$

Step-by-step explanation:

This half life exponential decay equation goes by the formula:

$A(t)=A_{0}e^{kt}$

Where

$k=\frac{ln(\frac{1}{2})}{Half-Life}$

Since half life is given as 22, we plug that into "Half-Life" in the formula for k and then plug in the formula for k into the exponential decay formula:

So,

$k=\frac{ln(\frac{1}{2})}{Half-Life}\\k=\frac{ln(\frac{1}{2})}{22}$

Now

$A(t)=A_{0}e^{\frac{ln(\frac{1}{2})}{22}t}$

third choice is correct.

8 0

2 years ago