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3 years ago

What do i supposed to do with this please ?

Mathematics

1 answer:

Oksana_A [137]3 years ago

5 0

Answer:

he has 26 1/6 square meters left.

Step-by-step explanation:

first, i divided 78 1/2 by 3, because he got 2 3rds done with only 1/3 left.

when i did that i got 26 1/6.

i highly recommend photmath app. it makes equations like that easy to put together and explain easily.

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Xian and his cousin Kai both collect stamps. Xian has 56 stamps, and Kai has 80 stamps. The boys recently joined different stamp

timofeeve [1]

Answer:

A.After how many months will Xian and Kai have the same number of stamps?

Step-by-step explanation:

5 0

3 years ago

Please help!<br>5.7km/h = ?ft/h

Step2247 [10]

The correct answer is 18696 ft/hour

5 0

3 years ago

The rate of change of atmospheric pressure P with respect to altitude h is proportional to P, provided that the temperature is c

jonny [76]

Answer:

$P = 101.5 e^{-0.00015h}$

Step-by-step explanation:

dP/dh = kP

dP/P = k dh

ln P = kh + C

Now, using the points given,

ln 101.5 = C, so C = 4.62

ln 87.3 = k*1000 + 4.62

k = -0.00015

So, we have

ln P = -0.00015 h + ln 101.5

P = 101.5 e^(-0.00015h)

3 0

3 years ago

A type of bacteria has a very high exponential growth rate of 80% every hour. If there are 10 bacteria, determine how many will

Lana71 [14]

<h3>There are 189 bacteria in 5 hours</h3><h3>There are 13382588 bacteria in 1 day</h3><h3>There are $10(1.8)^{168}$ bacteria in 1 week</h3>

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

Given that,

A type of bacteria has a very high exponential growth rate of 80% every hour

There are 10 bacteria

<em><u>The increasing function is given as:</u></em>

$y = a(1+r)^t$

Where,

y is future value

a is initial value

r is growth rate

t is time period

From given,

a = 10

$r = 80 \5 = \frac{80}{100} = 0.8$

<em><u>Determine how many will be in 5 hours</u></em>

Substitute t = 5

$y = 10(1 + 0.8)^5\\\\y = 10(1.8)^5\\\\y = 10 \times 18.89568\\\\y \approx 188.96$

y = 189

Thus, there are 189 bacteria in 5 hours

<em><u>Determine how many will be in 1 day ?</u></em>

1 day = 24 hours

Substitute t = 24

$y = 10(1 + 0.8)^{24}\\\\y = 10(1.8)^{24}\\\\y = 10 \times 1338258.84\\\\y = 13382588.45\\\\y \approx 13382588$

Thus, there are 13382588 bacteria in 1 day

<em><u>Determine how many will be in 1 week</u></em>

1 week = 168

Substitute t = 168

$y = 10(1 + 0.8)^{168}\\\\y = 10(1.8)^{168}$

Thus there are $10(1.8)^{168}$ bacteria in 1 week

6 0

3 years ago

The following data points represent the number of children in each household in Cam's neighborhood.

makkiz [27]

Answer:

Step-by-step explanation:

We can see that 9 households are represented in the data, 4 of them are zeros. This means 4 households in Cam's neighborhood have 0 children.

4 0

3 years ago