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Andrej [43]
3 years ago
7

I wrote these questions as one big question but decided to do them separately...

Mathematics
1 answer:
Alex17521 [72]3 years ago
5 0

Answer:

448 tracks

Step-by-step explanation:

So first we need to figure out what 28% of 350 is and then add that value onto 350.

  • First we need to convert 28% into a decimal or a fraction
  • 28% is equivalent to 0.28, \frac{28}{100}, and \frac{7}{25}
  • I will use 0.28 for simplicity

To figure out what 28% of 350 is, we need to multiply 350 by one of the three options above

  • (350)(0.28) = <u>98 tracks</u>

Now that we have figured out what 28% of 350 is, we can now add this value to 350 to get the total number of tracks.

  • 350 + 98 = 448 tracks
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Answer:

he circle has a radius of π inches, so use a radius of about 3.1 inches.

Step-by-step explanation:

The circumference of a circle can be described as the linear distance round the circle

The circumference of a circle = 2nr

n = 3.14

r = radius

the diameter is the straight line that passes through the centre of a circle and touches the two edges of the circle.

A radius is half of the diameter

diameter = 2r

If diameter = n2

diameter = 3.14 x 2 = 6.28

Radius = 1/2 x diameter = 6.28/2 = 3.1

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Answer:A= 1,2 B=1,2 C=-9,10

Step-by-step explanation:

For A=

To find A', reflect the triangle exactly over the y-axis. That will put your A' at (1,2)

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Answer:

Alicia

Step-by-step explanation:

First, convert the mixed fractions into improper fractions

<u>Alicia</u>

Distance: 5 1/2 = 11/2 = 5.5 miles

Time: 1 2/5 = 7/5 = 1.4 hours

<u>Carlos</u>

Distance: 8 1/8 = 65/8 = 8.125 miles

Time: 2 1/2 = 5/2 = 2.5 hours

<u>Henry</u>

Distance: 3 2/3 = 11/3 = 3.6 reoccuring miles

Time: 1 1/10 = 11/10 = 1.1 hours

<u>Zoe</u>

Distance: 4 2/3 = 14/3 = 4.6 reoccuring miles

Time: 1 3/10 = 13/10 = 1.3 hours

After that, divide the distance by the time

Alicia = 5.5 / 1.4 = 3.93 ( 3 s.f )

Carlos = 8.125 / 2.5 = 3.25

Henry = 3.6 re / 1.1 = 3.3 reoccuring

Zoe = 4.6 / 1.3 = 3.54 ( 3 s.f )

Looking at these answers, we determine which rate is the greatest

Alicia = 3.93

Carlos = 3.25

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Zoe = 3.54

Alicia hiked the highest rate.

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