Answer:
The time it'd take for the element to have 15 g of mass is approximately 68 min.
Step-by-step explanation:
The radioactive decay of a substance is given by the following formula:
Since the element has a half life of 12 minutes, this means that after this time the mass of the element will be half of it was originally, therefore:
Therefore the mass of the element is given by:
If the initial mass is 760 g and the final mass is 15 g, we have:
The time it'd take for the element to have 15 g of mass is approximately 68 min.Step-by-step explanation:
Because it is greater, larger numbers are on the right of the number line...
Answer:
It's 1/6
Step-by-step explanation:
all you have to do is multiply the answer by 1/3 so 1/3 times 1/2 equals 1/6 so your answer is 1/6
Answer:
y = 11, x = 76/6
Step-by-step explanation:
We will start by finding y
92 + 8y = 180 we know this because the angle degree of one line is 180 you can just do simple elimination to solve this
92+ 8y = 180 subtract 92 from both sides
8y = 88 then divide both sides by 8 and you get
y = 11
Now for x we know the blank angle is equal to 88 because of vertical angles
so now it is 88 + ( 6x - 16) = 180 again we do elimination
88 + 6x - 16 = 180 subtract 88 from both sides and you get
6x - 16 = 92 then subtract 16
6x = 76 then divide both sides by 6 and get

hope this helps :)
6(y+2) = 4(z+9)
6y + 12 = 4z + 36
6y = 4z + 24
y = (4z + 24) / 6
y = (2z + 12) / 3
answer
C. y = (2z + 12)/3