All categories

3 years ago

PLEASE HELP write a word problem that can be solved by the equation 108 divided by r=12

2 answers:

8 0

There are r classes in a school and there are a total of 108 persons in the school. If there are equal number of students in each class and there are 12 classes in the school. Find the number of students in each class.

108 ÷ r

r = 12

108 ÷ 12 = 9

9 students in each class.

IRINA_888 [86]3 years ago

5 0

You have to sent a message on the post office.
the message must have 108 characters in total. you have to use 12 words in that message. what is the maximum length (the number of characters in each) of the words you have to use it to use only 12 words, and use 108 characters in total?

You might be interested in

81000 in standard form

BabaBlast [244]

I believe the answer is 10^4

4 0

3 years ago

Read 2 more answers

-3x + 6y = 18

mote1985 [20]

Step-by-step explanation:

-3x + 6y = 18

-3x = 6y+14

a) the slope of the 1st equation = -(-3)/6 = ½

b) the slope of the 1st equation = -3/6 = -½

c) they are niether parallel nor perpendicular

3 0

3 years ago

Many doctors rely on the use of intravenous medication administration in order to achieve an immediate response of a particular

rewona [7]

The domain of the function is 0 ≤ t ≤ 3 and the greatest concentration of the medication is 2mg/L

<h3>The domain of the function</h3>

The equation of the function is given as:

$C(t) = \frac{-18t^2 + 54t}{t^2 + 7t + 10}$

Time can be 0 or greater but cannot be negative.

So, the domain of the function includes t ≥ 0

Set the function to 0 to determine the maximum value of t.

$\frac{-18t^2 + 54t}{t^2 + 7t + 10} = 0$

Cross multiply

$-18t^2 + 54t = 0$

Factor out -18t

-18t(t - 3) = 0

Divide both sides by -18t

t - 3 = 0

Add 3 to both sides

t = 3

This means that the maximum value of t is 3

Hence, the domain of the function is 0 ≤ t ≤ 3

<h3>The greatest concentration of the medication</h3>

From the graph of the function (see attachment), we have the maximum value to be;

C(t) = 2

Hence, the greatest concentration of the medication is 2mg/L