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3 years ago

Choose the equation that represents this situation. Use n to represent the

Mathematics

2 answers:

Flauer [41]3 years ago

5 0

Answer:

Step-by-step explanation:

I know is C let em have brainliest

Alenkasestr [34]3 years ago

4 0

Answer:

I THINK ITS C

Step-by-step explanation:

You might be interested in

40 percent of the students at rockledge middle school are musicians. 75 percent of those musicians have to read a sheet music wh

sweet-ann [11.9K]

Answer:

Step-by-step explanation:

40/100 musicians .75*40= 30

30 is to 100

as 38 is to x

30 38

---- = ------ Cross multiply

100 x

30x=3800

divide by three to get

126 and 2/3

you can't split people, so it would be closer to about 127 students.

5 0

4 years ago

{20, 25, 19, 18, 21, 24, 15, 25} What is the mean of the data set? Make sure to show ALL of your work

katrin [286]

Answer:

20.875

Step-by-step explanation:

Mean is to add up the scores then divide by the number so 20 + 25 + 19 + 18 + 21 + 24 + 15 + 25 which is 167 then divide by 8 which is 20.875

4 0

3 years ago

325 Students and adult Will be riding the buses .Each buses hold 48 people.how many buses are needed .

Korolek [52]

325/48=# of busses
7 busses

6 0

3 years ago

Read 2 more answers

It takes 30 minutes or less to walk from home to school and back home again when walking at 30m/min to school and walking at 45

erik [133]

Answer:

540m

Step-by-step explanation:

From the question,we are told

It takes 30 minutes or less to walk from home to school and back home again

Time walking to school = 30 or less minutes

Time walking from school = 30 less minutes

Speed walking to school = 30m/min

Speed walking from school = 45m/min

The question asked us to find the Distance between home and school

The formula for Distance covered = Speed × Time

Total distance = Total Speed(m/min) × Total time(minutes)

Let the distance between home and school be represented by x

Time to walk from the house to school = x/ 45m/min + x/ 30m/min

= 30 × x + 45 × x/1350

=( 75x / 1350)

Time to walk from school or to school = 30 minutes of less

= 75x/1350 = 30

75x = 1350 × 30

x = 1350 × 30/75

x = 540m

Therefore, distance between home and school = 540m

4 0

3 years ago

An object travels along a horizontal straight path at a constant rate the object travels 1/20 of the length of the path in 3/4 s

Eduardwww [97]

Answer:

15 seconds

Step-by-step explanation:

Simply assume that total length to be covered be 'L'.

Now , $\frac{1}{20}$ of total length L is covered in time $\frac{3}{4}seconds$ .

We know distance traveled =speed×time

Let Object's velocity be V

Using this

$\frac{L}{20}=V×time$

$\frac{L}{20}=V*\frac{3}{4}$

Thus, velocity in terms of total length is

$V=\frac{L}{15}$

Now,

To cover total length L time needed is

$time =\frac{distance}{speed}$

$time=\frac{L}{\frac{L}{15} }$

Time taken =15 seconds

3 0

4 years ago