First, find the 40% discount.
40% of 195 is 78
195 x 0.40 = 78
Subtract that from 195
195 - 78 = 117
Now, find 66 2/3% of 117, since it is an additional reduction after the original discount.
2/3 = 0.667, so 66 2/3% is 66.667%
117 x 0.66667 = 78.00039
And subtract that from 117
117 - 78.00039 = 38.99961, which in dollars would be $38.99. (hundredths, etc. of a cent are usually just dropped; no rounding involved.)
The discount price would then be $38.99
A. square root property
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it has one value with x which is x^2 and it cn be easily solved without having to factorise, quadratic formula cant be used as it need ax^2+bx+c=0 format
B. factorising
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i just felt like this was easier to factorise than the other 2 options left
C. Completing the square
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same reason personal preference
D- Quadratic
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the 17 kinda threw me off and i didnt wanna get on factorising or doing completing the square so quadratic formal
The answer would be 2,200
Recall all interior angles in a triangle add up to 180°, therefore