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3 years ago

THIS IS INTEGERS WITH MULTIPLICATION AND DIVISION!!!

Mathematics

1 answer:

ad-work [718]3 years ago

6 0

Answer:

Step-by-step explanation:

IT'S OBVIOUSLY B-30 BECAUSE WHEN YOU SAY -30 IT MEANS 0 BUT WHEN YOU SAY -10 ZERO AGAIN AND WHEN YOU SAY 350 IT'S NOT IT BCS IT'S TOO HIGH LOL, SO OBVIOUSLY IT'S 30.

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Find the area of each round your answer to the nearest tenth

daser333 [38]

Answer:

Area of a circle- pi x r square

3.14 x 2 x 2

= 3.14 x 4

= 12.56

Round off- 13

6 0

3 years ago

Read 2 more answers

I need help plz Will give brainlyist (no links)

leva [86]

Answer:

20m^2

5 x 8 = 40/2 = 20m^2 or 20m squared

I hope this helps

3 0

3 years ago

SAT math scores have a bell-shaped distribution with a mean of 515 and a standard deviation of 114.

nadezda [96]

Hey there mate :)

Analysis :

$401 = 515 - 114 = u - 6$

And

$173 = 515 - 3.114 = u - 36$

$= \frac{p(u - 36 < u < u + 36) - p(u - 6 < u < u + 6)}{2}$

$= \frac{99.73percent - 68.21percent}{2}$

$= \frac{31.46percent}{2}$

$= {15.73percent}$

Then, calculating,

$u - 26 = 515 - 2 \times 114 = 287$

And

$u + 26 = 515 + 2 \times 114 = 743$

Then,

$The \: Range = (287,743)$

Final Answers :-

15.73 %

(287,743)

~Benjemin360

3 0

3 years ago

On his outward journey, Ali travelled at a speed of s km/h for 2.5 hours. On his return journey, he increased his speed by 4 km/

den301095 [7]

Answer:

3.08 km/h.

Step-by-step explanation:

We know that,

$Speed=\dfrac{Distance}{Time}$

Ali traveled at a speed of s km/h for 2.5 hours.

Let d be the distance and t be the time.

$2.5=\dfrac{d}{t}$

$2.5t=d$ ...(1)

On his return journey, he increased his speed by 4 km/h and saved 15 minutes. So, distance is d and times is t-15.

$4=\dfrac{d}{t-15}$

$4(t-15)=d$ ...(2)

From (1) and (2), we get

$4(t-15)=2.5t$

$4t-60-2.5t=0$

$1.5t=60$

$t=40$

Put t=40 in (1).

$d=2.5(40)=100$

So, t=40 and d=100.

Now,

Total distance = d + d = 100 + 100 = 200

Total time = t + t - 15 = 40 + 40 - 15 = 65

So, the average speed is

$\text{Average speed}=\dfrac{\text{Total distance}}{\text{Total time}}$

$\text{Average speed}=\dfrac{200}{65}$

$\text{Average speed}\approx 3.08$

Therefore, the average speed is 3.08 km/h.

3 0

4 years ago

A city has a population of 38,802,500 people. Esitmate this population to the nearest ten million

almond37 [142]

Answer:

40,000,000

Step-by-step explanation:

hope this works

( No Copy answer Use)

3 0

3 years ago