Answer:
38.46%
Step-by-step explanation:
There are no names or marking that can make the calculator look different, so the order is not important. Then we should use a combination to solve this problem.
There are 40 calculators in one shipment, 37 of them good items and 3 of them are defect items. We need to choose 19 good calculators and 1 defect calculator. The number of ways to do that will be:
* = 37!= 53017895700
The number of possible ways to choose 20 calculators out of 40 calculators will be:
= =137846528820
The chance will be: 53017895700/ 137846528820 = 0.3846= 38.46%
When two secant lines intersect each other outside a circle, the products of their segments are equal.
14(с + 14) = 10(10 + 20)
14с + 196 = 10 * 30
14с +196 = 300
14с = 300 - 196
14с = 104
с = 104/14
с ≈ 7.4
Basically, from what i can see and understand, is that you take the original price. lets use the chair.
$139.99 you choose which discount you would like to use either the $20 off or 20% off.
if you choose $20 then
$139.99-$20=119.99
but if you choose 20%
$139.99x0.20=27.99 (meaning you deduct $27.99 from $139.99)
139.99-27.99=$112
now you decide which one you'd choose. i would say 20% off because it costs less.
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