Answer:
The actual discount is a 68% discount.
Step-by-step explanation:
Remember that if something has a price P, and you have a discount of the X%, the new price will be:
P' = P - P*(X%/100%) = P*(1 - X%/100%)
Here we first have a 60% discount, then if the initial price is P, the new price is:
P' = P*(1 - 60%/100%) = P*(1 - 0.6)
Now we have an additional 20% discount (this applies to the new price)
then the final price is:
P'' = P'*(1 - 20%/100%) = P'*(1 - 0.2) = P*(1 - 0.6)*(1 - 0.2)
We want to rewrite this as something like:
P'' = P*(1 - k)
Let's do this:
P'' = P*(1 - 0.6)*(1 - 0.2) = P*(1 - 0.2 - 0.6 + 0.2*0.6)
= P*(1 - 0.8 + 0.12) = P*(1 - 0.68)
And this can be as:
P'' = P*(1 - 68%/100%)
Then the actual discount is a 68% discount.
Penatgon
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Answer:
23. Calculate the P-value for this hypothesis test. Assume the requirements for the test are satisfied.
0.087
29. Which of the following pairs of hypotheses is the most appropriate for addressing this question?
H0:p=0.2 Ha:p>0.2
Step-by-step explanation
test statistic: 6.579
You reject Ha
Yes, because to be perpendicular to the same line, they would have to be perpendicular. The lines couldn’t be perpendicular to the third line if they weren’t congruent and in proportion.
I hope this helps!
~kaikers
Answer:
LCD = 270
Equivalent Fractions with the LCD
1/6 = 45/270
13/27 = 130/270
4/5 = 216/270
3/10 = 81/270
2/5 = 108/270