To evaluate the combination we proceed as follows:
21C3
Given nCk we shall have:
n!/[(n-k)!k!]
thus plugging the values in the expression we get:
21!/[(21-3)!3!]
=21!/(18!×3!)
=1330
Answer: 1330
Based on the amount of oranges bought, those sold at a profit and those sold at a loss, the overall profit is 14.2%
<h3>What is the overall profit?</h3>
Assume that the buying price was $1 each.
The amount earned from 60% of them is:
= 60% x 100,000 x 1
= $60,000
The profit from selling 50% of the remaining is:
= (50% x 40,000) x 1.60
= $32,000
The loss from selling the other 50%:
= (50% x 40,000) x 0.90
= $22,222.22
Total selling price:
= 60,000 + 32,000 + 22,222.22
= $114,222.22
Total profit:
= (114,222.22 - 100,000) / 100,000
= 14.2%
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Answer:
y=7
Step-by-step explanation:
The slope is (7-7)/(3+7) = 0. So, the line is a horizontal line.
The y value of both points is 7.
Answer:
-7< x < 6
Step-by-step explanation:
|4x + 2| < 26
The absolute value has a positive and a negative. Remember to flip the inequality when taking the negative
4x+2 < 26 and 4x+2 > -26
Subtract 2 from each side
4x+2-2 < 26 -2 and 4x+2 > -26-2
4x < 24 and 4x > -28
Divide by 4
4x/4 < 24 4x/4 >-28/4
x <6 and x> -7
-7< x < 6
Answer:
Step-by-step explanation:
b,e
