Ask question

Ask question

All categories

2 years ago

11

The predicted number of messages per person per day in 2019 is how many times the estimated number in 2015? (round your answer t

o two decimal places.)

1 answer:

Anon25 [30]2 years ago

6 0

Using proportions, it is found that the predicted number of messages per person per day in 2019 is 1.05 times the estimated number in 2015.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.

Researching this problem on the internet, it is found that in 2015, there were:

2586 million users.

205,600 million messages.

Hence the number of messages per person is given by:

205600/2586 = 79.5.

For 2019, we have that there were:

2943 million users.

246,500 million messages.

Hence the number of messages per person is given by:

246500/2943 = 83.76.

The proportion between these two amounts is given by:

83.76/79.5 = 1.05.

The predicted number of messages per person per day in 2019 is 1.05 times the estimated number in 2015.

More can be learned about proportions at brainly.com/question/24372153

#SPJ4

You might be interested in

Determine the x- and y-intercepts of the graph of y=−1/3x+3 .

andrey2020 [161]

X-intercept : -9 (-9,0)
y-intercept: 3 (0,3)

3 0

3 years ago

Read 2 more answers

What is the estimate of 15 ÷ 485

leva [86]

i think it 30 but I could be wrong

4 0

3 years ago

One of the zeros of the polynomial function is 2. f(x)=x4−3x3−23x2+75x−50 What is the factored form of the function?

maria [59]

<span>f(x)=(x−5)(x+5)(x−2)(x−1)</span>

3 0

4 years ago

Read 2 more answers

1. N - 80 = 40 2. 15n = 30 3. N + 284 = 350 4. 6 + 9 = 3 x n 5. N divided by 3 = 6 +1 6. 12 - 8 = n divided by 5 7. 58 x 6 = n -

kkurt [141]

Answer:

1. $N=120$

2. $n=2$

3. $N=66$

4. $n=5$

5. $N=21$

6. $n=20$

7. $n=1398$

8. $n=5$

Step-by-step explanation:

1.

$N-80=40$

$N=40+80$

$N=120$

2.

$15n=30$

$\dfrac{15n}{15}=\dfrac{30}{15}$

$n=2$

3.

$N+284=350$

$N=350-284$

$N=66$

4.

$6+9=3\times n$

$15=3n$

$\dfrac{15}{3}=n$

$n=5$

5.

$\dfrac{N}{3}=6+1$

$\dfrac{N}{3}=7$

$N=7\times 3$

$N=21$

6.

$12-8=\dfrac{n}{5}$

$4=\dfrac{n}{5}$

$4\times 5=n$

$n=20$

7.

$58\times 6=n-(723 + 327)$

$348=n-1050$

$348+1050=n$

$1398=n$

8.

$4n+12=(7+9)\times 2$

$4n+12=16\times 2$

$4n+12=32$

$4n=32-12$

$4n=20$

$n=\dfrac{20}{4}$

$n=5$

Therefore, the solutions are 1. $N=120$

2. $n=2$

3. $N=66$

4. $n=5$

5. $N=21$

6. $n=20$

7. $n=1398$

8. $n=5$

8 0

3 years ago

Work out the area of a semi circle with a radius of 3cm<br> give your answer in terms of pi

Ivenika [448]

<h3>The area of semicircle is $4.5 \pi\ cm^2$ </h3>

<em><u>Solution:</u></em>

Given that,

We have to find the area of a semi circle with a radius of 3 cm

<em><u>The area of semicircle is given as:</u></em>

$Area\ of\ semicircle = \frac{ \pi r^2}{2}$

Where, r is the radius

From given,

r = 3 cm

<em><u>Substituting the values we get,</u></em>

$Area\ of\ semicircle = \frac{ \pi \times 3^2}{2}\\\\Area\ of\ semicircle = \frac{ \pi \times 9}{2}\\\\Area\ of\ semicircle = 4.5 \pi$

Thus the area of semicircle is $4.5 \pi\ cm^2$

4 0

4 years ago