Here we MUST follow Order of Operations rules.
Must start out by doing the work inside the parentheses: (8+7) = 15
Next, multiply this result by 3: 3(15)=45 (answer)
You will have to work out the given versions of this problem until you find one that is also equal to 45.
You put both parentheses in standard form, then divide as if it were a normal problem. Once the quotient is found, move the decimal point to the right. Every time you move one space to the left, increase the exponent by one but also divide your quotient by 10
example:
10³/10²
1000/100
10
10=
Answer:
73.90%
Step-by-step explanation:
Let Event D=Defective, D' = Non Defective
Let Event N=New Machine, N' = Old Machine
From the given information:

We are required to calculate the probability that a widget was manufactured by the new machine given that it is non defective.
i.e. 

Using Baye's Law of conditional Probability

Therefore given that a selected widget is non-defective, the probability that it was manufactured by the new machine is 73.9%.
Answer:
420 hg = __4200000___ cg
Step-by-step explanation:
<h2>please mark me brainliest</h2>
9/20
45% is 0.45. To switch into a fraction you do 45 over 100, simplified is 9/20.