1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
SSSSS [86.1K]
2 years ago
5

Suppose you have 60 kg of a radioactive material that decays 50% of its mass every

Mathematics
2 answers:
amid [387]2 years ago
8 0
Year 1= 60 x .5 =30
Year 2=30 x .5 =15
Year 3=15 x .5 =7.5
Year 4=7.5 x .5 =3.75
The answer is 3.75
bija089 [108]2 years ago
7 0

Answer:

8.12 kg

Step-by-step explanation:

Suppose you have 60 kg of a radioactive material that decays 50% of its mass every year. How much material will you have left after 4 years?

You might be interested in
Mervin has some cartons of milk. He sold 2/5 of milk in the morning. He sold 3/4 of the remainder in the afternoon. 24 more cart
sergejj [24]

2/5 were sold in the morning. This is equal to 40% of the total.  That leaves 60% leftover.

 

3/4 were sold in the afternoon. This is equal to 75% of the 60% leftover or 45% of the total (.6x.75).

 

The difference between the two sales is 24 cartons or 5% (45%-40%). If 5% is equal to 24 then you can cross multiply to see what is the equivalent number of cartons out of 100%.

 

5/100 = 24/x

5x = 24(100)

5x = 2400

x = 480

 

ANSWER: 480 cartons

6 0
3 years ago
Please answer quickly, thank you for your help
RoseWind [281]

Answer:

-6<x<-9

Step-by-step explanation:

if x+9<0 and 2x>-12

x<-9

x>-6

X is smaller than -9 but greater than -6.

The solution is -6<x<-9

6 0
2 years ago
Read 2 more answers
Please answer all 4 questions:)
Scorpion4ik [409]

Answer:

1. d=m/v

=57.6/112.9

=0.51018601

=0.510g/cm³(3s.f.)

2. m=d×v

=1.8×54

=97.2g

3. v=m/d

=63.8/12.7

=5.02362205

=5.02cm³(3s.f.)

4. v=length×breath×height

=12×2×6

=144m³

216g=0.216kg

d=m/v

=0.216/144

=0.0015kg/m³

Step-by-step explanation:

density=mass/volume

mass=density×volume

volume=mass/density

*make sure the units are correctly placed.

*g/cm³, kg/m³

3 0
2 years ago
Read 2 more answers
HELP ASAP , algebra 1 giving BRAINLIEST , no guessing , please include the letter p in your math sentence.
Alenkinab [10]

Answer:

p<55 or p+48≤55

Step-by-step explanation:

p+48=55

p<55

I don't really know how else to write it?

3 0
2 years ago
Read 2 more answers
-54 - 7r = -5(-2 - 5r)
makkiz [27]
-54-7r=10+25r
-7r-25r=10+54
-32r=64
r=64/-32
r=-2
3 0
3 years ago
Other questions:
  • Hi what isthe answer
    5·1 answer
  • How far is it from Philadelphia, Pa to Binghamton, Ny
    14·2 answers
  • How many times can 5 go into 44
    10·2 answers
  • Juan and Raj cut up a banana to put on cereal. Juan puts 17 of the banana on his bowl of cereal, and Raj puts 25 ​ of the banana
    5·1 answer
  • What does this equal​
    8·1 answer
  • A silo is not the shape of a cone. The silo is 8 meters tall and it's base has a diameter of 3 meters. Soybeans cost $414 per cu
    9·1 answer
  • Alonso multiplied the fractions 312and (−414) and got a product of −1218. Describe the mistake that Alonso made. What is the cor
    12·1 answer
  • Cant figure this out help please
    14·2 answers
  • I need to tak to a female beecause i have a few questions
    10·1 answer
  • Caleb bought 5 packs of pencils for 10$ . how muc will he pay for 9 packs of pencils?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!