Answer:
16.2$
Step-by-step explanation:
Price of the notebooks: 15$
Tax Rate: 8%
Tax: 15$ * 8% = 1.2$
Price after Tax: 15$ + 1.2$ = 16.2$
Answer:
g = 1/2
Step-by-step explanation:
Step 1: Add 0.5g to both sides
9 + 4g = 11
Step 2: Subtract 9 from both sides
4g = 2
Step 3: Divide by 4 on both sides
g = 2/4
Step 4: Simplify
g = 1/2
Answer:
Step-by-step explanation:
we are given half-life of PO-210 and the initial mass
we want to figure out the remaining mass <u>after</u><u> </u><u>4</u><u>2</u><u>0</u><u> </u><u>days</u><u> </u>
in order to solve so we can consider the half-life formula given by
where:
- f(t) is the remaining quantity of a substance after time t has elapsed.
- a is the initial quantity of this substance.
- T is the half-life
since it halves every 140 days our T is 140 and t is 420. as the initial mass of the sample is 5 our a is 5
thus substitute:
reduce fraction:
By using calculator we acquire:
hence, the remaining sample after 420 days is 0.625 kg
Answer:
11,040 is the answer
Step-by-step explanation:
you just need to subtract
The answer is 68!!!!!!!!!