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OLEGan [10]
3 years ago
12

The half-life of a radioactive substance is 11 days. After 12 days a sample of the substance has been reduced

Mathematics
1 answer:
sergiy2304 [10]3 years ago
8 0
The mass is 48.3 that’s it
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Of people who died in the United States in a recent year, 86% were white, 12% were black, and 2% were Asian. (We will ignore the
Marianna [84]

Answer:

To three decimal place  = 0.030

Step-by-step explanation:

Let probability of death in white p (WH) = 86%

Let probability of death in black p(B) =12%

Let probability of death in Asian p(A) = 2%

Probability of death caused by diabetes among white will be 2.8% of p (WH) = 0.86 x 0.028 = 0.02408

Probability of death caused by diabetes among black will be 4.4% of p (B) = 0.12 x 0.044 = 0.00528

Probability of death caused by diabetes among Asian will be 3.5% of p (A) = 0.02x 0.035 = 0.0007‬

If a sample is chosen and the cause is diabetes then the probability will be

Probability of death caused by diabetes among white or Probability of death caused by diabetes among black or Probability of death caused by diabetes among Asian  

0.02408 +0.00528 +0.0007 = 0.03006

To three decimal place  = 0.030  

5 0
3 years ago
What is 1/4 of 3/5 of customers
shepuryov [24]
The answer is 7/20. 1/4= 5/20 and 3/5 = 12/20 What I did was find the GCF (greatest common factor) of both 4 and 5 which was 20. Then I multiplied both numerators by the same number I multiplied the denominator with. Afterwards I subtracted both numerators (12-5) and this equals to 7 Hope that helps
8 0
3 years ago
What is the volume of a prism which has a base of 5 m by 3m, and a height of 4m?
wlad13 [49]
If you multiplied the base times the width times the height you would get a final answer of 60m.
4 0
3 years ago
Please show the work
Alex Ar [27]

Step-by-step explanation:

15t + 30 = 20t | -15t

30 = 5t

t = 30/5 = 6

20 + 5t = -6t + 86 | + 6t

20 + 11t = 86 | -20

11t = 66

t = 6

18t + 20 = 24t + 50 | -18t

20 = 6t + 50 | -50

-30 = 6t

t = -30/6 = -5

18t - 2 = 10t + 54 | -10t

8t - 2 = 54 | +2

8t = 56

t = 56/8 = 7

7t - 5 = 15t + 91 | -7t

-5 = 8t + 91 | -91

-96 = 8t

t = -96/8 = -12

5 0
1 year ago
Danny bought 6 ounces of sunflower seeds for $2.64. How much did 1 ounce of sunflower seeds cost?
vova2212 [387]
2.64 divided by 6 equals 0.44. one ounce costs 44 cents
8 0
3 years ago
Read 2 more answers
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