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shutvik [7]
3 years ago
5

Nancy and Matilda are 60 miles apart, cycling towards each other on the same road. Matilda rides 12 miles per hour and Nancy rid

es 8 miles per hour. In how many hours will they meet?
Mathematics
1 answer:
dedylja [7]3 years ago
5 0

Nancy and Matilda will meet in 3 hours.

Step-by-step explanation:

Given,

Distance to cover = 60 miles

Speed of Matilda = 12 miles per hour

Speed of Nancy = 8 miles per hour

Combined speed of Nancy and Matilda = 8+12 = 20 miles per hour

Let,

x be the time taken by them

Distance = Speed * Time

60=20*x\\60=20x\\20x=60

Dividing both sides by 20

\frac{20x}{20}=\frac{60}{20}\\x=3

Nancy and Matilda will meet in 3 hours.

Keywords: distance, speed

Learn more about distance at:

  • brainly.com/question/11007572
  • brainly.com/question/11015995

#LearnwithBrainly

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3 years ago
The weight Wkg of a metal bar varies jointly
maria [59]

Answer:

d = \sqrt{\frac{216W}{35L} }

Step-by-step explanation:

Given that W varies jointly as L and d² then the equation relating them is

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To find k use the condition W = 140 when d = 4 and L = 54, thus

140 = k × 54 × 4² = 864k ( divide both sides by 864 )

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d = \sqrt{\frac{216W}{35L} }

6 0
2 years ago
A train travels 4.4 miles in
Ugo [173]

Answer:

63.8 miles

Step-by-step explanation:

If the train travels 4.4 miles in 4 minutes, then you have to divide 4.4/4 to find the miles the train travels per minute.

4.4/4 = 1.1

So, since the train travels 1.1 miles per minute, and we want to know how fast it travels in 58 minutes, we have to multiply 1.1 by 58. Since 1.1 is a decimal number, we have to multiply both sides by 10 to get 11x580.

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Since we multiplied both numbers by 10, we have to divide 6380 by 100.

6380/100 = 63.8

So, the train travels 63.8 miles in 58 minutes.

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2 years ago
Pete is saving up for a bike and knows he'll need to spend at least $220 to get the one he wants. He saves $45 each month. How l
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3 years ago
2. Calculate the energy in joules of a photon whose frequency is 7.55×1014 Hz.
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E = h × v

where:
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Substitute 'h' and 'v' into the formula we have

E = (6.63×10⁻³⁴) × (7.55×10¹⁴)
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