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3 years ago

There are 12 marbles in a bag. 3

Mathematics

1 answer:

malfutka [58]3 years ago

3 0

Answer:

1/3 is the probability for the blue marbal

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A cyclist rides his bike at a speed of 18 miles per hour. What is this speed in feet per second? How many feet will the cyclist

Kisachek [45]

Answer:

The distance travel by cyclist in 20 seconds is 528 feet .

Step-by-step explanation:

Given as :

The speed of cyclist riding bike = s = 18 miles per hour

Let The distance cover by cyclist in 20 seconds = d feet per sec

Now, According to question

∵ 1 miles = 5280 feet

∴ 18 miles = 5280 × 18 = 95,040 feet

So, The speed of cyclist in feet per hour = 95,040 feet per hour

Again,

∵ 1 hours = 3600 seconds

So, The speed of cyclist in feet per sec = $\dfrac{95040}{3600}$ ft/sec

∴ The speed of cyclist in feet per sec = 26.4 feet per second

Again

∵ In 1 sec the distance cover by cyclist = 26.4 feet

∴ In 20 sec the distance cover by cyclist = 26.4 × 20 feet

i.e In 20 sec the distance cover by cyclist = 528 feet

Hence, The distance travel by cyclist in 20 seconds is 528 feet . Answer

3 0

3 years ago

A rectangular pyramid fits exactly on top of a rectangular prism. The prism has a length of 15 cm, a width of 5 cm, and a height

rodikova [14]

Answer:

D: 850 cm^3

Step-by-step explanation:

You sum the volumes.

Prism is 15*5*7 = 525

Pyramid is 15*5*13/3 = 325

Sum is 850

5 0

2 years ago

The figure below shows parallel lines cut by a transversal:

ad-work [718]

Angles 1 and 2 are congruent because they are a pair of alternate interior angles.

4 0

3 years ago

Read 2 more answers

The perimeter of the square is 64 inches. What is the perimeter of the shaded region?

ioda

Answer:

54.94 inches

Step-by-step explanation:

First you need to find the radius of the semi-circles within the square.

You find this by dividing the perimeter by 8

64/8 = 8

now use the formula πr^2 to find the area of the semi circle

π8^2 = 201.06

Now find the total area of the square and subtract it from the area of the two semi circles to find the shaded region

16*16 = 256

256-201.06 = 54.94

5 0

2 years ago

If kendra can walk 5 kilometers in 1 hour then how long does it take her to walk 1 kilometer?

Alex_Xolod [135]

Answer:

1/5 hour or 12 minutes

Step-by-step explanation:

We can use proportions to solve this problem. Put the distance over the time

5 km 1 km

----------- = ---------

1 hour x hours

Using cross products

5x = 1

Divide by 5

x = 1/5 hour

or if we take it to minutes

1/5 * 60 = 12 minutes

7 0

3 years ago