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Georgia [21]
3 years ago
7

Alex can cut a cord into 7 pieces in 36 seconds. How long will it take him to cut the cord into 12 pieces?

Mathematics
1 answer:
ruslelena [56]3 years ago
7 0

Answer:

61.716 seconds (62 if round up is needed)

Step-by-step explanation:

36 / 7 = 5.143

5.143 * 12 = 61.716

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What would the temperature be on an autumn day?
Ket [755]
<span>Probably 50 F, 32c would be 89 degrees Fahrenheit.</span>
4 0
3 years ago
Read 2 more answers
The accepted value of the average distance between Earth and the moon is 384, 467 km. If a scientist measures that the moon is 3
Karo-lina-s [1.5K]

Answer:

Percentage error is 0.0024 %

Step-by-step explanation:

Initial average distance between Earth and moon = 384467 km  

Distance measure by the scientist = 384476 km

Total variation in the distance calculation = 384476 – 384467 = 9 km.

Now we can find the percentage by dividing the variation in distance from the initial measurement and then multiply with hundred.

Percentage error = ( 9 /  384467 ) × 100 = 0.0024 %

4 0
3 years ago
0 ) Dan bought 7 new baseball trading cards to add to his collection. The next
harina [27]

Dan started with 69 cards

Step-by-step explanation:

Let x be the initial number of cards

Then

According to "Dan bought 7 new baseball trading cards to add to his collection"

x+7

The next  day his dog ate half of his collection.

\frac{1}{2}(x+7)

There are now only 38 cards left.

\frac{1}{2} (x+7) = 38

Multiplying both sides by 2

x+ 7 = 38*2\\x+7 = 76

Subtracting 7 from both sides

x+7-7 = 76-7\\x = 69

Hence,

Dan started with 69 cards

Keywords: Linear equation, word problems

Learn more about linear equations at:

  • brainly.com/question/7888686
  • brainly.com/question/7857079

#LearnwithBrainly

4 0
3 years ago
Answer number 20. Please answer all parts to the question.
emmasim [6.3K]
1: 7
2: Yes, 20 because it’s isolated from the rest of the points
(I don’t know the other ones, sorryyyyy)
5 0
2 years ago
Anyone feel like helping me??
Digiron [165]
The angles of a triangle add up to 180 degrees

65 + 3x - 10 + 2x = 180
5x + 55 = 180
5x = 180 - 55
5x = 125
x = 125/5
x = 25 <====

m < B = 3x - 10 = 3(25) - 10 = 75 - 10 = 65 <== B is 65 degrees
m < C = 2x......= 2(25) = 50 <== C is 50
8 0
3 years ago
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