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Lunna [17]
3 years ago
8

After running a marathon, Marcel’s heart beat rate was 80 beats in twenty seconds. What was his heart rate for 1 second?

Mathematics
2 answers:
o-na [289]3 years ago
6 0

At 4 beats because 80 divided by 20=4

boyakko [2]3 years ago
5 0

Answer

4 beats

Step-by-step explanation:

80 divided by 20= 4 beats per second

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During WW2, mortars were fired from trenches dug 4 feet in the ground. The mortars had an average velocity of 150 ft/s. What is
san4es73 [151]

uh...probably not very long

5 0
3 years ago
The perimeter of a hexagon with all equal sides<br>is 9.0m. How long is each side?​
natali 33 [55]

Answer:

1.5m

Step-by-step explanation:

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you get 1.5m

7 0
3 years ago
A shopping mall parking garage charges $2 for the first half hour and $1.20 for each additional half hour (even if it is under 3
Neko [114]

You can park in the garage for 5 hours 30 minutes

<em><u>Solution:</u></em>

Given that, shopping mall parking garage charges $2 for the first half hour and $1.20 for each additional half hour (even if it is under 30 minutes)

Therefore,

Cost for first half an hour = $ 2

Cost for each additional half an hour = $ 1.20

Let "x" be the number of each additional half hour

Therefore, total cost to pay is given as:

Total cost = Cost for first half an hour + (Cost for each additional half an hour)(number of each additional half hour)

Total cost = 2 + 1.20x

<em><u>Given you have $ 8 in cash</u></em>

8 = 2 + 1.20x\\\\1.20x = 8 - 2\\\\1.20x = 6\\\\x = \frac{6}{1.20}\\\\x = 5

Total hours parked = first half an hour + 5

Thus you can park in the garage for 5 hours 30 minutes

4 0
3 years ago
Will someone plz help with this problem<br><br> BY THE WAY FUNNY PHOTO
Greeley [361]

Step-by-step explanation:

may be the answer be 465 but the answer may be wrong too

8 0
2 years ago
Solve and graph the following: -6 -8x &gt;-5<br><br>​
OverLord2011 [107]

Answer:

-1/8 > x

Step-by-step explanation:

Rewrite the equation to -1 > 8x, so -1/8 > x

Dot -1/8 on the number line, and everything on the left of that point( if right is positive ) is x .

8 0
3 years ago
Read 2 more answers
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