ANSWER
EXPLANATION
From the given information, Elena chooses a number from 1 to 10.
The sample space is
S={1,2,3,4,5,6,7,8,9,10}
n(S)=10
The numbers greater than 5 are:
E={6,7,8,9,10}
n(E)=5
The probability that, she chooses a number greater than 5 is:
Substitute the values,
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Greatest Common Factor:
We look for a number that can simultaneously go into both numbers:
4: 28 70
7 10
No other number can go into both at the same time.
Therefore GCF is 4.
answer
x =21.24
Step-by-step explanation:
180 (n-2)
7 sides
180 * 5 = 900
add up all the sides and = them to 900
25x + 369 = 900
25x = 531
x = 21.24 = answer
Since there is a 40% discount, this means that they subtracted 40% of the original price from the original price, meaning that $36 is 60% of the original price. We can use ratios to figure out the original price (so 100% of the price).
100% x
60% 36
x = 36*100 / 60 = 3600 / 60 = 360 / 6 = 60
We can check this quickly: 60 * 0.4 (or 40%) is 24. If we subtract 60-24 we get 36, so we did the problem correctly