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Zolol [24]
2 years ago
10

Rank the following methods of timekeeping from most precise to least precise. ANSWER ASAP AND GET BRAINLIEST

Mathematics
1 answer:
PtichkaEL [24]2 years ago
8 0

Answer:

Most precise to least precise

  1. Finding the height of the sun in the sky
  2. Counting heartbeats
  3. A calendar
  4. A stop watch
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Diane is 25 years older than her son Craig. The sum of their ages is 105. How old are Diane and Craig?
ankoles [38]

Answer:

Let Craigs age = x

Therefore Dianes age = 25 + x ( since she's 25 years older)

Dianes + Craigs age = (25 + x) + x = 105 (They said both of their ages sums up to 105)

25 + 2x = 105

2x = 80

x = 40

Craigs age is 40 years old.

Dianes age is 65 years old.

4 0
2 years ago
Read 2 more answers
Dr. Brown did 6 experiments at 7AM. Dr. Rachal did 8 experiments at 6PM. They both had 564 tools each. Dr. Brown used 386 and Dr
devlian [24]

Answer:

Step-by-step explanation:

Total number of tools for both = 564.

Dr Brown used 386 tools for 6 experiments.

average number of tools per experiment used by Dr Brown = \frac{386}{6}

                                               = 64\frac{1}{3}

Dr Rachal used 236 tools for 8 experiments.

average number of tools per experiment used by Dr Rachal = \frac{236}{8}

                                                = 29\frac{1}{2}

i. The number of more experiment that can be done by Dr Brown = (564 - 386) ÷ (64\frac{1}{3})

                                 = 2.7668

Dr Brown can do two more experiments.

The number of more experiments that can be done by Dr Rachal = (564 - 236) ÷ (29\frac{1}{2})

                                  = 11.1186

Dr Rachal can do 11 more experiments.

ii. Number of tools left after Dr Brown's experiments = 564 - 386

                                                            = 178

Number of tools left after Dr Rachal's experiments = 564 - 236

                                                            = 328

7 0
3 years ago
Helllo fellow class maters​
bixtya [17]

Answer:

hello

Step-by-step explanation:

how are u :)

4 0
3 years ago
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The reference angle for is, which has a terminal point of (2).
AVprozaik [17]

Answer: C

Step-by-step explanation:

\frac{5\pi}{4} is in the third quadrant, so both x and y are negative.

Therefore, the only possible answer is C.

6 0
2 years ago
Positive numbers are located to the
chubhunter [2.5K]

Answer:

1. False

2. True

Step-by-step explanation:

5 0
3 years ago
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