Answer:
<h3>C. Scientific Notation</h3>
Step-by-step explanation:
Since the number in question is greater than or equal to 1 but less than
10, we can choose any number between 1 and 10, lets take 3 for example.
If we take the product of 3 and an integer power of 10 number without regard to its sign, this can be expressed mathematically as shown;
where the power of 10 is -5. Note that any real number can be used as the power since we are not regarding the sign (Here we used -5). The expression formed according to the expression in question is a SCIENTIFIC NOTATION i.e gives us a scientific notation.
<em>Scientific notation is a means by which we represent very large or small numbers that are difficult to represent using a decimal notation</em>
Answer:
The simpler way is:
SP = 0.85*RP
Step-by-step explanation:
Suppose that we have a given amount A. and now we take a given percentage, X%, off.
The new amount will be:
New amount = A - (X%/100%)*A = A*(1 - X%/100%)
This is the general formula.
In this case, we know that the store has advertised 15% off, then we have X% = 15%
Then if:
SP = sales price
RP = regular price
We will have the equation:
SP = RP - (15%/100%)*RP = RP - 0.15*RP
This is what Jill found, but if we use the general equation above, we will find that:
SP = RP*(1 - 15%/100%) = RP*(1 - 0.15) = RP*0.85
So we just need to multiply the regular price by 0.85 to get the sales price.
Answer:
B :)
Step-by-step explanation:
Answer:
It would be 260
Step-by-step explanation:
Hope this helps :))
