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Orlov [11]
3 years ago
10

Which of the following activities are examples of data gathering?

Mathematics
1 answer:
arsen [322]3 years ago
8 0
the correct answer is d
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A tortoise and a hare are competing in a race around a 1600-meter track. The arrogant hare decides to let the tortoise have a 78
Sindrei [870]
I am presuming that the question is who won or by how much did the winner win. 

distance equals rate times time, or d = r*t
For the Hare d = 1600 and r = 10
   1600 = 10 t 
Divide both sides by 10 
t = 160
The hare finished in 160 seconds

For the tortoise d = 1600 - 780 = 820 (due to the head start) and r = 5.3
820= 5.3 t
Divide both sides by 5.3
t = 154.72 (rounded to the hundredths place)

The tortoise won by 5. 28 seconds (160-154.72)
 
6 0
3 years ago
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Bethany has 4 baggies with 8 counters in each baggie. Alex has 7 counters
nikklg [1K]

Answer:

alex has 25 counters

Step-by-step explanation:

8x4=32

32-7=25

25 is your answer

6 0
2 years ago
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Can somebody help me plz with number 13,14,15,16,17
yuradex [85]
13. There are 3 feet in a yard. You divide 34 by 3 and get 11 with one left     over. So it should be 11 yards and 1 foot.
14.  16 oz. = 1 lb. If you multiply 16 (oz) x 8 (lbs.) you get 128 ounces.
5 0
3 years ago
8 out of ten (Write each decimal)​
Marina86 [1]

Eight out of ten as a fraction = 8/10, as a decimal = 0.8

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3 years ago
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Diana has been saving nickels and dimes. She opened up her piggy bank and determined that it contained 48 coins worth $4.50. Det
tino4ka555 [31]

Answer:

6 Nickels

42 Dimes

Step-by-step explanation:

There are 48 coins in total (nickels and dimes). Let the number of nickels be "n" and the number of dimes be "d". So we can write:

n + d = 48

or

n = 48 - d

In dollars, we know nickels are worth 0.05 and dimes are worth 0.10. In total there is $4.50, so we can write:

0.05n + 0.10d = 4.50

Now replacing first equation [n = 48 - d] into 2nd, we get and equation in "d" and solve for d first:

0.05n + 0.10d = 4.50\\0.05(48-d) + 0.10d = 4.50\\2.4-0.05d+0.10d=4.50\\0.05d=4.50-2.4\\0.05d=2.1\\d=\frac{2.1}{0.05}=42

So, there are 42 dimes.

We know from before, n = 48 - d, so

n = 48 - 42 = 6

There are 6 nickels

3 0
3 years ago
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