d – 0.2
d – 0.2d
1 – 0.2d
Answer:
x = 6
Step-by-step explanation:
Start off by reducing this equation: divide all three terms by 4. This yields:
x^2 - 12x + 36 = 0
This equation has the form (x - h)^2, the square of a binomial.
x^2 - 12x + 36 = 0, written as the square of the binomail x - 6, comes out to:
(x - 6)^2 = 0. This equation has a repeated real root: x = 6
The amount of money the club had first is $71,713
To determine how much money the club has first, we can derive solution to it by using the area model method. (Please refer to the attachment below)
What we should do first is to calculate the total amount of money spend on chairs by multiplying the chair purchased and the price per each chair
Therefore, we have:
355 x 199
= (300 + 50 + 5) x (100 + 90 + 9)
= (300 x 100) + (300 x 90) + (300 x 9) + (50 x 100) + (50 x 90) + (50 + 9) (5 x 100) + (5 x 90) + (5 x 9)
= 30000 + 27000 + 2700 + 5000 + 4500 + 450 + 500 + 450 + 45
= 70645
Therefore, the total money spend on chairs is 70,645
Recall, we have to calculate the money the club has first before purchase, then we can derive this by adding the total money spend on chairs and the money the club has after purchase.
Therefore we have:
= 70645 + 1068
= 71,713
Therefore, the money the club has at first before purchasing new chairs is 71,713.
You can also solve this quickly by multiplying the chair purchased by the club and the price per each chair, then the value derived should be added to the money the club has after purchase.
Hence,
= 355 x 199
= 70645
= 70645 + 1068
= 71,713.
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