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3 years ago

Monica rode her bike 24 kilometers in 1.5 hours what was her speed

Mathematics

1 answer:

vovikov84 [41]3 years ago

6 0

Answer:

16 km per hour

Step-by-step explanation:

24÷1.5 = 16

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The radius of a sphere is 12 units. Find the volume of the sphere. Write your answer in terms of pi.

stiv31 [10]

Answer:

V = 2304π units³

Step-by-step explanation:

The volume (V) of a sphere is calculated as

V = $\frac{4}{3}$ πr³ ( where r is the radius ) , then

V = $\frac{4}{3}$ π × 12³

= $\frac{4}{3}$ π × 1728

= 4π × 576

= 2304π units³

5 0

2 years ago

I need help please....

Semmy [17]

Answer:x=-7

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

843 to the nearest 100

Ray Of Light [21]

It is 800 because the 4 can not tell the what to do so that it is

3 0

3 years ago

15. Construct the slope-intercept form equation of the line passing through (-5,23) and (10,-5).

Radda [10]

Answer:

15y = -28 x + 205.

Step-by-step explanation:

Slope intercept form of equation is y = mx + c where m is slope and c is the y intercept.

Now slope of line passing through points (-5, 23) and (10, -5):

$m = \frac{y_{2} - y_{1} }{x_{2} - x_{1} } = \frac{-5 -23}{10 + 5} = \frac{-28}{15}$

Now equation of line:

y = mx + c

substituting the value of m in above expression,

$y = -\frac{28}{15} x + c$

Now, since the line is passing through the point (-5, 23) therefore, x = -5 and y = 23. By substituting these values in above equation,

$23 = -\frac{28}{15} \times (-5) + c$

$23 = \frac{28}{3} + c$

$c = 23 - \frac{28}{3} = \frac{69 - 28}{3} = \frac{41}{3}$

So equation of line in slope intercept form:

$y = -\frac{28}{15} x + \frac{41}{3}$

Further solving,

15y = -28 x + 205.

3 0

3 years ago

David is watching maria and alma race electric trains around track. Maria train can go around the track in 10 seconds. Almas tra

Nady [450]

Answer:

60 seconds.

Step-by-step explanation:

We have been given that Maria train can go around the track in 10 seconds. Alma train can go around the track in 12 seconds.

To find the number of seconds after which both trains will cross the finish line together the first time we will find LCM of 10 and 12. LCM will give us the smallest positive integer that is divisible by both 10 and 12.

Multiples of 10 are: 10, 20, 30, 40, 50, 60, 70,...

Multiples of 12 are: 12, 24, 36, 48, 60, 72, 84,..

We can see that least common multiple of 10 and 12 is 60, therefore, it will take 60 seconds for both trains to cross the finish line together the first time.

6 0

3 years ago