Answer:
i think the answer is A: 0.0005
Step-by-step explanation:
i think so because when i divided alaska by rhode island, i got 500000000. so i guess you move the decimal
<span>10x-3=6x+85
4x = 88
x = 22</span>
The amount of the radioactive material in the vault after 140 years is 210 pounds
<h3>How to determine the amount</h3>
We have that the function is given as a model;
f(x) = 300(0.5)x/100
Where
- x = number of years of the vault = 140 years
- f(x) is the amount in pounds
Let's substitute the value of 'x' in the model
f(x) = 300(0.5)x/100


f(140) = 210 pounds
This mean that the function of 149 years would give an amount of 210 pounds rounded up to the nearest whole number.
Thus, the amount of the radioactive material in the vault after 140 years is 210 pounds
Learn more amount radioactive decay here:
brainly.com/question/11117468
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A parallelogram is a shape with two sets of parallel lines and that shape has two sets of parallel lines so it’s a parallelogram and all quadrilateral shapes are parallelogram but not all parallelograms are quadrilaterals..
I hope this help hun
Answer:
D = 12 Miles from her house to Fixit.
Step-by-step explanation:
Speed =Distance travelled/ Time
Time =Distance travelled/ Speed
T = D / 30 The time it took her to drive to Fixit.
T = D / 20 The time it took her to ride the bus home.
D / 30 + D / 20 = 1 hour, solve for D,