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krok68 [10]
2 years ago
13

Judy's heart beats 70 times a minute. At this rate, how many times does her heart beat in an hour?

Mathematics
2 answers:
Eva8 [605]2 years ago
7 0

Answer:

4200 times

Step-by-step explanation:

If there is 70 beats in a minute, and 60 minutes in an hour. All you do is 70*60.

Nikitich [7]2 years ago
5 0

Answer:

4,200 hbph

Step-by-step explanation:

Hope this helps and have a great day!!!

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A FEW MATH QUESTIONS ! PLEASE EXPLAIN ANSWERS ! (:
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answers

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4) 72


<u>Explanation</u>

Q1

The surface area of a cone is given by;

S.A = 2Πrl + Πr²

Where r is the radius of the base and l is the lateral height.

Πr² = area of the base = 20 in²

2Πrl = Area of the lateral surface

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Area of the cone = 50 + 20

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Q2

The sides of the Pythagorean triangle with legs of 12 and 16.

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c = √(12² + 16²)

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Q3

The volume of a cone is given by;

volume = 1/3 Π r² h

This shows that the volume of a cone is a third the volume of the cylinder.

∴ Volume of the cylinder = 12 × 3

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Q4

The volume of any regular figure is;

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Volume = 2x × 2y × 2z = 2 × 2 × 2 × 9

             = 8 × xyz = 8 × 9

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