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2 years ago

Marie is riding her bike at 15 miles per hour. What is her rate of speed in feet per second?

Mathematics

1 answer:

stepladder [879]2 years ago

7 0

Answer:

22(c)

Step-by-step explanation:

Our current proportion is

15 miles

-------------

1 hour

We need feet per second.

Lets convert!

15 miles= 79200 feet(used googl to find this)

1 hour=3600 seconds(also used googl to find this)

( i know its not spelled that way brainly wont let me write the whole word out)

Now, our proportion is:

79200 feet

-----------------

3600 seconds

HOWEVER, this can be simplified!!!!

79200/3600=22

Final answer: 22, or C.

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3 years ago

Negative three over four times five over seven divided by negative one over two

LekaFEV [45]

Answer:

$1 \frac{1}{14}$

Step-by-step explanation:

$- \frac{3}{4} \times \frac{5}{7} \div - \frac{1}{2} = - \frac{15}{28} \times -2 = \frac{30}{28} = 1 \frac{2}{28} = 1 \frac{1}{14}$

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3 years ago

How do you find the median of 15,8,19,21,18,17 ? Thanks

KengaRu [80]

Answer:

median = 17.5

Step-by-step explanation:

The median is the middle value of a data set arranged in ascending order. If there is not a middle value then the median is the average value of the numbers either side of the middle.

Data in ascending order is

8, 15, 17, 18, 19, 21

The median is between 17 and 18, hence

median = $\frac{17+18}{2}$ = 17.5

7 0

3 years ago

Read 2 more answers

I need help finding the answer for this.

Dmitry [639]

The Answer is 12 meters.

7 0

3 years ago

Please help me out please

Fantom [35]

Answer:

the area of the hexagon is approx. 187.1 in²

Step-by-step explanation:

Picture this regular polygon as being a hexagon made up of six equilateral triangles of side 12 in. We find the area of one such triangle and then multiply that by 6 to obtain the total area of the hexagon.

One such equilateral triangle has three sides all of length 12 in, and all the interior angles are 60°. The height of one such triangle is

h = (12 in)sin 60°, or

√3

h = (12 in) -------- = 6√3 in

So, with base 12 in and height 6√3 in, the area of one such equilateral triangle is

A = (1/2)(12 in)(6√3 in) = 36√3 in²

and the total area of the hexagon is 6(36)√3 in², or approx. 187.1 in²

5 0

3 years ago