5t/13 = -9
5t = -9 * 13
5t = -117
t = -117/5
1.5 x 2 = 3 So you do 2.4 x 2 = 4.8 and the answer is 4.8 miles
Answer:
8
Step-by-step explanation:
32 divided by 8 gives you 32
Answer: the answer is c) $0.85
Step-by-step explanation:
if he has 3/20 of a dollar that calculates to $0.15 and $1.00 minus $0.15 equals $0.85
I believe you are referring to the half-life formula, which is used to calculate the half-life (when the substance drops to half of its original amount) of radioactive substances. The equation is as follows:

<em>A</em> is the remaining amount
<em>P</em> is the initial amount
<em>t</em> is the time that has passed
<em>h</em> is the half-life of the substance
When plugging values into the equation, make sure that <em>t </em>and <em>h </em>are both measured in the same unit (e.g. <em>t </em>days and <em>h </em>days), as well as <em>A </em>and <em>P</em>.