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ioda
3 years ago
12

A boat moves 60 kilometers east from point A to point B. There, it reverses direction and travels another 45 kilometers toward p

oint A. What are the total distance and total displacement of the boat?
Mathematics
1 answer:
anyanavicka [17]3 years ago
3 0
Total distance =  sum of the distances run:60 km + 45km = 105 km

Displacement: difference between iniital position and final position: 0 + [60km - 45km] = 15 km 
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noname [10]

9514 1404 393

Answer:

  A.  9.6

  B. √92 ≈ 9.59

Step-by-step explanation:

A. 9.6 is a rational number between 9.5 and 9.7. It is rational because it is a terminating decimal.

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B. √92 is an irrational number between 9.5 and 9.7. It is irrational because it is the square root of an integer that is not a perfect square. Its decimal value is about 9.59.

6 0
3 years ago
A pack of 12 retractable pens costs $12.24.<br><br><br><br> What is the price of 2 pens?
iogann1982 [59]
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4 0
3 years ago
Caroline resting heart is 52 beats per minute (bpm). When she starts running her heart rate increases 1.25% each second until it
horsena [70]

Answer:74.55 beat per minute

Step-by-step explanation:

Given

Heart beat is 52 beat per minute

i.e. B=\frac{52}{60} beat per sec

If heart rate is increases 1.25 % each sec

suppose B is the heart beat at first second therefore heat beat at 2 nd second

B_2=B+1.25 \% B

B_2=B(1+1.25 \% )

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B_3=B(1+1.25\%)+1.25\%B(1+1.25\%)

B_3=B(1+1.25\%)^2

similarly for 3 sec

B_{30}=B(1+1.25\%)^{29}

B_{30}=1.433B

B_{30}=1.242\ \text{beat per second }

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4 0
3 years ago
8.37 Sale prices at the Ajax Outlet Store are 50% below original prices. On Saturdays, an additional discount of 20% off the sal
givi [52]

Answer:

Given:

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To find:

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The formula used to calculate the percentage is (value/total value)*100%.

Step-by-step explanation:

Step 1 of 2

The original price of coat = $180



Ajax always sells at 50% discount

So their sale price = $90

Step 2 of 2

On Saturdays they sell 20% less

Which implies-

1/5*90 = 18

90-18=72

They sell at $72 on Saturday.

5 0
2 years ago
Read 2 more answers
What is 18.57 in word form
Karolina [17]
Eighteen and fifty seven hundreds

(it helps if you sound it out XD)
4 0
3 years ago
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