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katen-ka-za [31]
3 years ago
15

ASAP Brainliest !!!! Answer both!!

Mathematics
1 answer:
anzhelika [568]3 years ago
6 0

Answer:

question 20 )  19.1 feet

question 21)   24 clips

Step-by-step explanation:

<h2><u>Question 20:</u></h2><h3><u>Circumference of a circle </u></h3>

formula:

2\pi r

therefore we can find the radius (r) , also include the circumference of 60 feet.

2\pi r = 60

where \pi = 3.14

2 * 3.14 * r = 60

r = \frac{60}{2*3.14}

r = 9.554....

<h3>to find the diameter we can use the formula :</h3>

<em>diameter = radius * 2</em>

diameter = 9.554 * 2

diameter = 19.108

to 3 sf

<h3><u>diameter = 19.1 feet </u></h3>

<u />

<h2><u>Question 21</u></h2>

large binder clips each cost $ 1.50

amount for purchases is $ 36.00

therefore the number of clips bought can be regarded as (x)

the formula would be :

1.50 * x = 36

x = 36/1.5

<u>x = 24</u>

<u></u>

<h3><u>hence the mom bought 24 binder clips</u></h3>
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20-year mean snowfall in the Denver/Boulder region is 28.76 inches. Test if the snowfall for the 1993-1994 winters has higher than the previous 20-year average.

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