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Yuri [45]
3 years ago
9

The class must be less than 32 students.If there are currently 21, how many students can be enrolled

Mathematics
1 answer:
borishaifa [10]3 years ago
4 0
10 students because it has to be 32 and lower but it can't be a fraction/decimal so 31-21=10

Hope this helps!
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Plz help ................................
Elodia [21]

Answer:

1/4 is correct, or .25 in decimal form

Step-by-step explanation:

7 0
2 years ago
Samuel can type nearly 40 words per minute. Use this information to find the number of hours it would take him to type 2.2 × 105
Dafna1 [17]
I believe the answer is .09625 hours

Explanation: first you do 2.2 x 105= 231
Then you do 231/40=5.775 to get how many minutes it takes to type 231 words. Then u divide 5.775/60 to get how many hours it would take.
3 0
3 years ago
If I worked all these hours, how much should I be paid. It's 13.69 per hour btw each. Schedule:
Dennis_Churaev [7]

Answer:

$246.42

Step-by-step explanation:

13.69(4+4+4+4) + 27.38

    13.69(16) + 27.38

     219.04 + 27.38

         246.42

You should make $246.42.

5 0
3 years ago
After releasing of radioactive material into.The atnosphere from.A nuclear.Powe plant in a country in 1988, the hay in that coun
Radda [10]

Answer:

the question is incomplete, so I looked for a similar one:

<em>After the release of radioactive material into the atmosphere  from a nuclear power plant, the hay was contaminated by iodine  131 ( half-life, 8 days). If it is all right to feed the hay to cows  when 10% of the iodine 131 remains, how long did the farmers  need to wait to use this hay? </em>

iodine's half life (we are given x, we need to find b):

0.5A₀ = A₀eᵇˣ

x = 8 days

we eliminate A₀ from both sides

0.5 = eᵇ⁸

ln 0.5 = ln eᵇ⁸

-0.69315 = b8

b = -0.69315 / 8 = -0.08664

since the farmers need to wait until only 10% of the iodine remains (we already calculated b, now we need to find x):

0.1A₀ = A₀eᵇˣ

0.1 = eᵇˣ

ln 0.1 = bx

where b = -0.08664

x = ln 0.1 / -0.08664  = -2.302585 / -0.08664  = 26.58 days

4 0
2 years ago
−21x + 121; x= 5<br> Help Me!!
NeTakaya

Answer:

16

Step-by-step explanation:

-21x+121

x=5

substitute x

-21(5)+121=-105+121=16

3 0
2 years ago
Read 2 more answers
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