Bus fair is $1.75. Purchase a monthly coupon book for $22, fair is reduced to $0.75. Determine the number of times in a month th
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Answer:
(a) width = (x - 1)
length = (7x - 6)
(b) Area = 350 cm²
Perimeter = 114 cm
Step-by-step explanation:
<h3><u>Part (a)</u></h3>Given equation:
⇒ a = 7, b = -13, c = 6
Find 2 two numbers that multiply to ac and sum to b: -6 and -7
Rewrite b as the sum of these 2 numbers:
Factorize the first two terms and the last two terms separately:
Factor out the common term (x - 1):
Therefore:
- width = (x - 1)
- length = (7x - 6)
Substitute the given value of x = 8 into the equations to find the area and perimeter: