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Musya8 [376]
1 year ago
8

Judy’s brother Sam has a collection of 96, but what are the 10 way Sam can divide his comic books equal groups

Mathematics
1 answer:
Ierofanga [76]1 year ago
8 0
He can divide by 2,3,4,6,8,12,16,24,32, and 48 but
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The height of an object t seconds after it is dropped from a height of 300 meters is s(t) = −4.9t2 + 300. (a) Find the average v
Katena32 [7]

Answer:

See it in the pic

Step-by-step explanation:

See it in the pic

6 0
1 year ago
Withdrawing $10 every week from an outstanding balance of $400
den301095 [7]
-10w - 400 = o

w= weeks
o = new outstanding balance
8 0
2 years ago
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Anita can clean a typical pool in 8 hours. Chao can clean a typical pool in 6 hours. How long should it take Anita and Chao work
ivanzaharov [21]
Anita can clean 1/8 portion of the pool in 1 hour

Chao can clean 1/6 portion of the pool in 1 hour

Both of them working together can clean 1/8 + 1/6 = 7/24 portion of the pool in 1 hour

Therefore, it will take both of the working together 1/(7/24) = 24/7 or 3 3/7 hours to clean a typical pool.
3 0
2 years ago
After a certain medicine is ingested, its concentration in the bloodstream changes over time.
myrzilka [38]

Answer:

Every hour, the medicine concentration decays by a factor of 4%.

Step-by-step explanation:

The relationship between the elapsed time, <em>t</em>, in minutes, since the medicine was ingested, and its concentration in the bloodstream, <em>C</em> (<em>t</em>), is:

C(t)=61\cdot (0.96)^{t}

The decay function is:

y=a(1-r)^{t}

Here,

<em>y</em> = final amount

<em>a </em>= initial amount

<em>r</em> = decay rate

<em>t</em> = time

From the provided expression the decay rate is:

1-r=0.96\\r=1-0.96\\r=0.04

Thus, every hour, the medicine concentration decays by a factor of 4%.

8 0
2 years ago
Read 2 more answers
Let x be the number of successes throughout n independent repetitions of a random experiment having probability of success p=1/4
Llana [10]

To answer problems like this you have to use binomial:

P (x > 1) = 1 – p (0 < x < 1) > .7 

So:

1 – p (0) – p (1) > .7 

1 – (3/ 4) ^n – (3/ 4) ^n (n – 1 ) (1/ 4) > .7 

Therefore n > 5.185, and the smallest value of n so that we can satisfy the given condition is 6 (rounded up)

<span> </span>

6 0
2 years ago
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