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MatroZZZ [7]
2 years ago
9

Every day, Marco runs for 45 minutes and covers 5 miles. How long would it take him to run 2 miles?

Mathematics
1 answer:
vichka [17]2 years ago
8 0
45 divided by 5 is 9, so it takes 9 minutes to cover 1 mile.
9 x 2 = 18.
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Jack is starting to save spend and give his money away he has determined that he will give 10% of his summer job earnings if he
GarryVolchara [31]

9514 1404 393

Answer:

  $2650

Step-by-step explanation:

If Jack's earnings are represented by e, then we have ...

  10% × e = $256

Multiplying by 10 gives ...

  100% × e = $2560

Jack earned $2650 in the summer.

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100% = 1

7 0
3 years ago
A force of 3 pounds is required to hold a spring stretched 0.6 feet beyond its natural length. how much work (in foot-pounds) is
ioda

The work done (in foot-pounds) in stretching the spring from its natural length to 0.7 feet beyond its natural length is 1.23 foot-pound

<h3>Data obtained from the question</h3>

From the question given above, the following data were obtained:

  • Force (F) = 3 pounds
  • Extension (e) = 0.6 feet
  • Work done (Wd) =?

<h3>How to determine the spring constant</h3>
  • Force (F) = 3 pounds
  • Extension (e) = 0.6 feet
  • Spring constant (K) =?

F = Ke

Divide both sides by e

K = F/ e

K = 3 / 0.6

K = 5 pound/foot

Thus, the spring constant of the spring is 5 pound/foot

<h3>How to determine the work done</h3>
  • Spring constant (K) = 5 pound/foot
  • Extention (e) = 0.7 feet
  • Work done (Wd) =?

Wd = ½Ke²

Wd = ½ × 5 × 0.7²

Wd = 2.5 × 0.49

Wd = 1.23 foot-pound

Therefore, the work done in stretching the spring 0.7 feet is 1.23 foot-pound

Learn more about spring constant:

brainly.com/question/9199238

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5 0
1 year ago
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Answer:

1. rise

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2 years ago
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igor_vitrenko [27]

Answer:

Point C

Step-by-step explanation:

If you retrieve 90 backwards, then you will get the point C.

6 0
2 years ago
Describe how the discriminant of a quadratic equation is related to the number of real solutions the equation has.
Anettt [7]
If the discriminant of a quadratic equation, given by B^2-4AC is positive, it has 2 real solutions. If 0, it has 1 real solution and if negative it has 0 real solutions.
5 0
3 years ago
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