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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.

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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No files!!! <br> Will give brainliest and please don’t guess

ohaa [14]

Answer:

i think its 54. i might be incorrect.

Step-by-step explanation:

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3 years ago

Read 2 more answers

If the perpendicular bisector of one side of a triangle goes through the opposite vertex, then is the triangle isosceles?

Ne4ueva [31]

Answer:

True

Step-by-step explanation:

The perpendicular bisector of the opposite side to the vertex bisects the angle at the vertex into two equal parts and also bisects the triangle into two equal parts.

Let A be the angle at the vertex, then assume that the angle is an isosceles triangle with base angles B.

We need to show that A = 180 - 2B for an isoceles triangle

The perpendicular bisector bisects A into two so the new angle in the vertex one half of the bisected triangle is A/2.

Since this half triangle is a right-angled triangle, the third angle in it is 90.

So, A/2 + B + 90 = 180 (Sum of angles in a triangle)

subtracting 90 from both sides, we have

A/2 + B + 90 - 90 = 180 - 90

A/2 + B = 90

subtracting B from both sides, we have

A/2 + B = 90

A/2 = 90 - B

multiplying through by 2, we have

A = 2(90 - B)

A = 180 - 2B

Since A = 180 - 2B, then our triangle is an isosceles triangle.

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3 years ago

Rounding factors to the greatest place results in this

san4es73 [151]

Estimate is the answer

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3 years ago

Emma uses a 250 meters roll of crepe paper to make steamers how many dekameters of crepe paper does Emma use

Ksivusya [100]

The dekameter (or decameter) first needs to be a translated into how many the meters. deka means 10, so a dekameter it must be 10 meters. So we have to divide 250 by 10, and then we will come up with 25 dekameters.
hope that helps!!

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3 years ago

the form y=axPlot five points on the graph of the function: one point with x=graph-a-function button.10130141

kifflom [539]

At first let us choose the 5 points

at x = 0, y = 0

The first point is (0, 0)

$y=ax^3$

We will choose a = 1/2

The points are

(-2, -4)

(-1, -1/2)

(0, 0)

(1, 1/2)

(2, 4)

$y=\frac{1}{2}^{}x^3$

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1 year ago