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Irina-Kira [14]
4 years ago
9

Jonathan runs 4 days a week. Each day, he runs 4 laps that are each 2 miles long. He spends 208 minutes running each week. He ru

ns each mile in the same amount of time.
Mathematics
1 answer:
fredd [130]4 years ago
4 0

4 laps x 2 miles = 8 miles total

8 miles x 4 days = 32 total miles per week

208 / 32 = 6.5 minutes per mile

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vlada-n [284]

Answer:

dy/dx = \frac{4x-1}{1-15y^{2} }

Step-by-step explanation:

-y + 2x²- x = -5y³

2x² - x = y - 5y³

4x - 1 = dy/dx - 15y².dy/dx

dy/dx(1 - 15y²) = 4x - 1

dy/dx = \frac{4x-1}{1-15y^{2} }

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3 years ago
What is the solution to the system of equations below y=-3/4x+3 and y=12.
Alexandra [31]
The correct answer choice is D.
5 0
3 years ago
A particular shoe store stocks two styles of walking shoes. Style A sells for $66.95 and Style B sells for $84.95. At the end of
Gnom [1K]

Answer:

Style A shoes sold : <u>152</u>

Style B shoes sold : <u>88</u>

Step-by-step explanation:

Let :

  • Style A shoes = x
  • Style B shoes = y

Forming equations :

  1. x = 2y - 24
  2. 66.95x + 84.95y = 17,652

Substitute the value of x from 1 in 2.

  • 66.95 (2y - 24) + 84.95y = 17,652
  • 133.90y - 1606.80 + 84.95y = 17,652
  • 218.85y = 19258.80
  • <u>y = 88</u>

<u />

Finding x :

  • x = 2(88) - 24
  • x = 176 - 24
  • <u>x = 152</u>

<u />

Solution :

  • Style A shoes sold : <u>152</u>
  • Style B shoes sold : <u>88</u>
8 0
2 years ago
If RS= 3x + 1 , ST= 2x -2 , RT= 64 , fine the value of x
Novay_Z [31]
The answer is 

RS=3 x 2 + 1, ST= 2 x 4 -2, RT= 64, i'm sorry if it didn't help
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4 years ago
Two equiangular decagons are congruent.<br> Sometimes/Always/Never
OLga [1]

Answer:

Two equiangular decagons are sometimes congruent.

4 0
3 years ago
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