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lana [24]
3 years ago
11

Jumping rope burns approximately 720 calories per hour. If Jenny jumps rope for 15 minutes, about how many calories will she bur

n at this same rate?
Hint: how many minutes are in 1 hour
Hint: simplifying the given ration may help you see the relationship.

Mathematics
1 answer:
Nutka1998 [239]3 years ago
5 0
My work is in the image provided. If you have any wQuestions concerning my methods, don't hesitate to ask.

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cricket20 [7]

Answer:

A could work

Step-by-step explanation:

Because it is a square, all angles should be 90 degrees

8 0
4 years ago
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A developer wants to enclose a rectangular grassy lot that borders a city street for parking. if the developer has 256 feet of f
Elanso [62]

Let the lenght perpendicular to street = x

Means lenght two sides will be x and x

Another side of retangle will be = 256 - 2x

Area of rectangle will be= A = x * (256-2x) = 256 x - 2 x^2

For maximum area, dA/dx = 0

d/dx (256 x - 2 x^2) = 0

256 - 4 x = 0

4 x = 256

x = 64 feet

Means one side is 64 feet

Another side will be = 256 - 2 * 64 = 128

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Hope it will help :)

7 0
4 years ago
A) give stating reasons five other angles each equal to x<br>b) prove that AECF is a parallelogram ​
Gennadij [26K]

Simple Proof:

a) In the image, we know that ABCD is a parallelogram and that means opposite angel measures should be the same. We know that angel DCB is made up by angel 1 and 2, and angel DAB and DCB are equal and angel DAB is made up by angel 1 and <em>x</em>. So now we can conclude that angel <em>x</em> is equal to angel 2.

b) According to the definitions of a parallelogram, opposite angel measures have to be the same, while AECF have angle 1 to angel 1 and angel 2 to angel 1. We can conclude that AECF is <u>NOT</u> a parallelogram. (Sorry, you didn't give me the full question so some information remains unclear. )

7 0
3 years ago
What is the slope between each pair of points. (-5,-2) and (9,2)​
zzz [600]

Answer: 2/7

Step-by-step explanation:

You subtract the y intercepts and put it over the x intercepts

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5 0
3 years ago
3.5x + 0.8 = 18.24 - 5.9x​
notka56 [123]

Answer:

x=1.85531914

Step-by-step explanation:

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4 years ago
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