0.28a=840
a is the number we need to find
0.28 is the decimal form of 28% (28/100)
0.28a=840
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0.28 0.28
a=3000
<h3>
Answer: 44.63 dollars</h3>
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Explanation:
If Hannah saves 30%, then she pays the remaining 70%, which then converts to the decimal form 0.70
The 15% discount leads to her paying the remaining 85% and that converts to the decimal 0.85
We'll multiply 0.70 and 0.85 to find the net discount
0.70*0.85 = 0.595
After combining both discounts, she pays 59.5% of the original price.
If the original price was $75, then she pays 0.595*75 = 44.625 = 44.63 dollars after applying both discounts.
There are C(5,2) = 10 ways to choose 2 contraband shipments from the 5. There are C(11, 1) = 11 ways to choose a non-contraband shipment from the 11 that are not contraband. Hence there are 10*11 = 110 ways to choose 3 shipments that have 2 contraband shipments among them.
There are C(16,3) = 560 ways to choose 3 shipments from 16. The probability that 2 of those 3 will contain contraband is
110/560 = 11/56 ≈ 19.6%
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C(n,k) = n!/(k!(n-k)!)
Answer:
A cylinder
Step-by-step explanation:
When you rotate the rectangle you are make a circle but since its volume the original height of the rectangle is the height of the circle which would mean a cylinder.
Answer: 1 hour 15min
Step-by-step explanation:
When Paul passes the gas station Mary si already 12.5 miles away
X=v t = 50mph 0.25h = 12.5 miles. (15min equals a quarter hour)
From that moment to the meeting point we’ll have only one t (time) and one x (final point) for both cars
For Mary we have
X= Xo + v t= 12.5 miles + 50mph t
For Paul we have
X=v t = 60mph t
As x si the same in both equations
60mph t = 12.5 miles + 50mph t
(60mph - 50mph) t = 12.5miles
10mph t = 12.5miles
t = 12.5miles/10mph
t = 1,25 h