I will mark either the best or the first answer brainliest.

working together it takes two computers 10 minutes to send out a company's email. If it takes the slower computer 30 minutes to

allochka39001 [22]

Answer: it will take the faster computer 15 minutes to do the job on its own.

Step-by-step explanation:

Let t represent the number of minutes it will take the faster computer to do the job on its own. It means that the rate at which it does the job per minute is 1/t

If it takes the slower computer 30 minutes to do the job on its own. It means that the rate at which it does the job on its own per minute is 1/30

By working together, they would work simultaneously and their individual rates are additive. Working together it takes two computers 10 minutes to send out a company's email. It means that the rate at which both computers work together per minute is 1/10 Therefore,

1/t + 1/30 = 1/10

Cross multiplying by 30x, it becomes

3x = x + 30

3x - x = 30

2x = 30

x = 30/2

x = 15 minutes

5 0

2 years ago

Please write This homework in Informal letter

Roman55 [17]

Answer:

Dear (your friend name)

Hope you are doing well. I have joined my boarding school, and writing this letter as per your demand to tell my experience.

have joined my boarding school, and writing this letter as per your demand to tell my experience.I came here about two days back. The school is eco friendly with multicoloured flowers and a field full of greenery. My hostel rooms and classrooms, both are highly ventilated and sun-facing. During these summer times, we don't need an air conditioner at all.

have joined my boarding school, and writing this letter as per your demand to tell my experience.I came here about two days back. The school is eco friendly with multicoloured flowers and a field full of greenery. My hostel rooms and classrooms, both are highly ventilated and sun-facing. During these summer times, we don't need an air conditioner at all.My classmates are good and I made few friends as well. The same is for hostel roommates too. Food too is very delicious here. We have playing time and television time as well.

have joined my boarding school, and writing this letter as per your demand to tell my experience.I came here about two days back. The school is eco friendly with multicoloured flowers and a field full of greenery. My hostel rooms and classrooms, both are highly ventilated and sun-facing. During these summer times, we don't need an air conditioner at all.My classmates are good and I made few friends as well. The same is for hostel roommates too. Food too is very delicious here. We have playing time and television time as well.Here everyone is very disciplined and strict for their routine and studies. Overall the environment is very nice here. Do write about what's going with you.

Love

(JOE or Gabriel)

HOPE THIS HELPED

8 0

2 years ago

What is the coefficient of x2y3 in the expansion of (2x + y)5?

Zigmanuir [339]

Option C:

The coefficient of $x^{2} y^{3}$ is 40.

Solution:

Given expression:

$(2 x+y)^{5}$

Using binomial theorem:

$(a+b)^{n}=\sum_{i=0}^{n}\left(\begin{array}{l}n \\i\end{array}\right) a^{(n-i)} b^{i}$

Here $a=2 x, b=y$

Substitute in the binomial formula, we get

$(2x+y)^5=\sum_{i=0}^{5}\left(\begin{array}{l}5 \\i\end{array}\right)(2 x)^{(5-i)} y^{i}$

Now to expand the summation, substitute i = 0, 1, 2, 3, 4 and 5.

$$=\frac{5 !}{0 !(5-0) !}(2 x)^{5} y^{0}+\frac{5 !}{1 !(5-1) !}(2 x)^{4} y^{1}+\frac{5 !}{2 !(5-2) !}(2 x)^{3} y^{2}+\frac{5 !}{3 !(5-3) !}(2 x)^{2} y^{3}$