You could use a ratio form for the first question
4) 8.5 : 34
29.75 : x x is the unknown
To find x, you must divide 29.75 by the length 8.5 to find the amount needed to be multipled by 34 grams, to find the total grams needed for the length of 29.75
29.75 / 8.5= 3.5 34 x 3.5 = <u>119 grams</u> , which is the answer to 4)
5) Same for this question, use the ratio form
1 1/3 : 3/4 5 / 0.75 ( 3/4) = 6.7
x : 5 miles 6.7 x 1 1/3 = <u>8.91 Miles jack ran</u>
6) ?? (Question not shown)
7) n = 0.6
8) 1 patient : 25 mins
n patients : 7.5 hours
25 mins to hours = 0.4
1 : 0.4
n : 7.5 7.5 /0.4 = 18.75 ----> <u>19 patients</u>
Answer:
- 33.75 minutes
- G(t) = 135(1/2)^(t/33.75)
- 51.42 grams
Step-by-step explanation:
Based on the given numbers, we know the decay factor is ...
8.25/132 = 1/16
in 135 minutes. We recognize 1/16 = (1/2)^4, so is 4 half-lives.
a) The half-life of goo is (135 min)/4 = 33.75 minutes
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b) A formula for the amount remaining could be ...
G(t) = 135(1/2)^(t/33.75)
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c) After 47 minutes, the amount remaining is ...
G(47) = 135(1/2)^(47/33.75) ≈ 51.42 . . . grams
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<em>Comment on the solution</em>
The general form of a decay equation can be ...
g(t) = (initial value)(decay factor)^(t/(decay time for the given factor))
For our G(t), we used a decay factor of 1/2 and the half-life time of 33.75 minutes.
Answer:
Reflection
Rotation
Step-by-step explanation:
These are the steps required to change figure A to figure B.
Answer:
0.71419 &0.71421 are the correct.
