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kodGreya [7K]
2 years ago
12

Are these proportion yes or no? 1/3 , 7/21 2/5 , 40/16 48/9 , 16/3

Mathematics
1 answer:
liq [111]2 years ago
3 0

Answer:

1) yes

2) no

3. yes

Step-by-step explanation:

(plz make me brainliest)

You might be interested in
A store offers a 15% discount on all items in the storage on a cell All Star employee gets in the aditional 10% employee discoun
pochemuha

Answer:

$81.09

Step-by-step explanation:

C=0.765(100)+0.06<u>(0.765x100)</u>

C=0.765(100)+<u>0.06x76.5</u>

C=<u>0.765(100)</u>+4.59

C=76.5+4.59

C=81.09

8 0
3 years ago
The scores on an entrance exam to a university are known to have an approximately normal distribution with mean 65% and standard
emmasim [6.3K]

Answer:

The correct answer is - C. 24.1%

Step-by-step explanation:

Given:

mean μ = 65%

standard deviation δ = 7.1 %

solution:

Prob( X>70) = 1 - Prob(x<70)  

= P (x-μ/δ ≥ 70 -65/7.1)

= 1 - Prob( (70-65)/7.1)

= 1 - Prob ( z < 0.7042553)

= 0.24065

the percentage of students scoring 70 or more in the exam

= 24.065*100

= 24.1%

4 0
2 years ago
How do you convert a fraction to a decimal? Say, <img src="https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B5%7D" id="TexFormula1" title
gladu [14]

Answer:

you divide the top number by the bottom number

Step-by-step explanation:

2/5 = 0.4

8 0
2 years ago
It is 6 kilometers from chris's house to the nearest mailbox. how far is it in meters
mote1985 [20]
6 kilometers = 6000 meters


1 kilometer = 1000 meters
So, 1000 × 6
8 0
2 years ago
The rate of change (dP/dt), of the number of people on an ocean beach is modeled by a logistic differential equation. The maximu
Kazeer [188]

Answer:

\frac{dP}{dt} = 2.4P(1 - \frac{P}{1200})

Step-by-step explanation:

The logistic differential equation is as follows:

\frac{dP}{dt} = rP(1 - \frac{P}{K})

In this problem, we have that:

K = 1200, which is the carring capacity of the population, that is, the maximum number of people allowed on the beach.

At 10 A.M., the number of people on the beach is 200 and is increasing at the rate of 400 per hour.

This means that \frac{dP}{dt} = 400 when P = 200. With this, we can find r, that is, the growth rate,

So

\frac{dP}{dt} = rP(1 - \frac{P}{K})

400 = 200r(1 - \frac{200}{1200})

166.67r = 400

r = 2.4

So the differential equation is:

\frac{dP}{dt} = rP(1 - \frac{P}{K})

\frac{dP}{dt} = 2.4P(1 - \frac{P}{1200})

3 0
2 years ago
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