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Ronch [10]
2 years ago
5

The half life of a particular radioactive substance is 1 year. If yiu started with 50 grams of this substance, how much of it wo

uld remain after 3 years.
Mathematics
1 answer:
Alenkinab [10]2 years ago
5 0

Answer:

Remaining amount is 6.25 grams

Step-by-step explanation:

I had the same question not to long ago

one year what you would be left with is 50/2 which is 25 gram

second year, you would be left with 50/4 which is 12.5

third year what's left is 50/8 i.e 6.25

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James plans to buy a new pair of shoes for $75.00, however, the manager sells them to him for $60.00. What is the percentage dis
ANTONII [103]

I believe the discount was 20%.

75-60=15

15/75=0.2

0.20

8 0
2 years ago
Given: KLMN is a parallelogram m∠K : m∠KLM=1:3 LF ⊥ KN , LD ⊥ NM Find: m∠FLD
SIZIF [17.4K]
In a parallelogram, opposite angles are equal and since it is a quadrilateral, the angles add up to 360°

<NKL = <LMN =  X
<KLM = <KNM = 3X
So, 2(x+3x) = 360°
      80x = 360°
       x = 45°
The figure LFND is another quadrilateral where: 
<LFN = <NDL =90°
<FND = 3x

So, (90×2)+3x+ (angle FLD) = 360°
      Angle FLD = 360° - 180° - (3×45)°
                        = 360° - 315°
                        = 45°


7 0
3 years ago
Read 2 more answers
Trey is buying peach and blueberry yogurt cups. He will buy at most 8 cups of yogurt. Let x be the number of peach yogurt cups a
Paraphin [41]

Answer:

8 ≤ x + y

Step-by-step explanation:

First you need to consider what is in the problem.

max number of cups = 8

x = number of peach cups

y = number of blueberry cups

Using this information, create an inequality that represents the situation

8 ≤ total number of cups

total number of cups = x + y

8 ≤ x + y

This is therefore the most representative equation for the situation.

6 0
3 years ago
The Chimera Ant population is 7,500 and grows 3% each year. What will the population be after 3 years.
Mashutka [201]
8175 because the 3 percent of 3 years is 675
8 0
2 years ago
4(8x-8)=-192 what's that mean and can someone help me asap
juin [17]
This is algebra. 4 times whatever is in the parentheses (8x-8) has to be equal to -192. If you do the math, x= -7
8 0
3 years ago
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