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3 years ago

What are the answers

Mathematics

1 answer:

algol [13]3 years ago

6 0

Unable to see the paper clearly

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9 out of 20 students will attend the Worldwide Day of Play at RMS what percentage of students will not attend

EastWind [94]

U do 4/20 = p/100 then u cross multiply the 4 with 100 getting u 400, then divide the 400 by 20, giving u the answer of 20%

8 0

3 years ago

Read 2 more answers

Simone raced 280 km from Perry to Medford and then idled back. If the round trip took 7 hours, what was Simone's average speed i

Gwar [14]

Answer:

80 KPH

Step-by-step explanation:

The total trip was 280*2 (the trip to perry and then to come back home)

divide this by the 7 hours it took him, and you get your answer. Enjoy!

6 0

3 years ago

Despite conspiracy theories, the USA was the first to land on the moon on July 20, 1969. Before this, however, the Soviets were

artcher [175]

Answer:

First man on asteroid

Step-by-step explanation:

No one has landed on an asteroid yet

8 0

3 years ago

A bacterial culture grows exponentially according to the function n(t)=n(e^n), where n(t) is the quantity after t hours and n is

mart [117]

Answer:

$n(t=2) = 2 e^{1.386294361(2)}=32 grams$

So then after 2 hours we will have 32 grams.

Step-by-step explanation:

For this case we have the followin exponential model:

$n(t) = n e^{rt}$

n(t) is the quantity after t hours, n is the original quantityand t represent the hours and r the rate constant.

For this case we know that n(0) = 2 grams and n(3) = 128 grams and we want to find n(2)=?

From the initial condition we know that n = 2, and we have the model like this:

$n(t) = 2 e^{rt}$

Now if we apply the other conditionn(3) = 128 we got:

$128 = 2 e^{3r}$

If we divide both sides by 2 we got:

$64= e^{3r}$

If we apply natural log for both sides we got:

$ln(64) = 3r$

$r = \frac{ln(64)}{3}=1.386294361$

And our model is this one:

$n(t) = 2 e^{1.386294361t}$

And if we replace t = 2 hours we got:

$n(t=2) = 2 e^{1.386294361(2)}=32 grams$

So then after 2 hours we will have 32 grams.

5 0

3 years ago

03.04 MC)

N76 [4]

Dit means the level of country

8 0

4 years ago