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lozanna [386]
2 years ago
12

The table describes Kenton’s running progress during his training. In the table, d represents the day number, and t represents t

he total number of miles he ran since he began training.
(a) Use words to describe the relationship between the day number and the total number of miles since Kenton began training.

(b) Use an equation to illustrate the relationship between the day number and the total number of miles since Kenton began training.

Answer:

Mathematics
1 answer:
BaLLatris [955]2 years ago
7 0

Answer: b: 2/5=2.5 for 1 day

Step-by-step explanation:

b: 2 ÷ 5 = 2.5 (for 1 day)

5 x 2.5 = 12.5

12 x 2.5 = 30

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1. A notebook costs $5 more than a folder. Greg purchased 3 notebooks and 2 folders and paid a total cost $30. What is the cost
stiv31 [10]
Answer
Notebook each =$4
Folder each = $9

First we write out what we know
Notebook = n
Folder = f
It says a notebook is +5 than a folder so
f = n +5
It says he bought 3 notebooks and 2 folders for $30
3n + 2f = 30

Because we know from the first equation
f=n+5, we can substitute that into the second equation for f

3n + 2(n+5) = 30
3n + 2n +10 =30. Now Combine like terms
5n +10 =30. Now isolate n by subtracting 10 from both sides
5n = 20. Now isolate n by dividing both sides by 5
n = 4

Now we do the same thing to find f
We substitute the value of n (4) into the equation 3n + 2f =30
3(4) +2f =30
12 +2f =30. Now isolate f by subtracting 12 from both sides
2f = 18. Now isolate f by dividing both sides by 2
f = 9


We check our work by inserting the n and f values we found into one of the equations
n + 5 = f
4 + 5 = 9
9 = 9. It worked it equals so it’s correct
8 0
1 year ago
Someone please help
nika2105 [10]

Answer:

b

Step-by-step explanation:

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6 0
3 years ago
What is the answer to this math question?
Dvinal [7]

The correct answer is:

C) 40°

4 0
3 years ago
A CD with a diameter of 120 millimeters rotates a rate of 45 revolutions per minute. Find the linear speed of the CD in millimet
ale4655 [162]

9514 1404 393

Answer:

  • 16,965 mm/min
  • 90π ≈ 282.7 radians/min

Step-by-step explanation:

The circumference of the CD is ...

  C = πd

  C = π(120 mm) ≈ 376.99 mm

This is the distance a point on the edge of the CD will travel when making one revolution. It will travel 45 times this far when making 45 revolutions:

  (376.99 mm/rev)(45 rev/min) ≈ 16,965 mm/min

__

There are 2π radians in each revolution, so the angular speed is ...

  (2π rad/rev)(45 rev/min) = 90π rad/min ≈ 282.7 rad/min

6 0
2 years ago
Write an equation in Standard Form. A store sells t-shirts for $12 each and
Dmitrij [34]
Standard form: Ax + By = C
Equation: 12x + 15y = 120
8 0
3 years ago
Read 2 more answers
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