Factor the expression using the GCF. 60 – 36 =
1 answer:
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Answer:
x = 5, x =
Step-by-step explanation:
Given
+
= 3
=
=
=
( cross- multiply )
10(x² - 6x + 8) = 3(2x² - 10x + 10) ← distribute both sides
10x² - 60x + 80 = 6x² - 30x + 30 ← subtract 6x² - 30x + 30 from both sides
4x² - 30x + 50 = 0 ( divide through by 2 )
2x² - 15x + 25 = 0 ← in standard form
(2x - 5)(x - 5) = 0 ← in factored form
Equate each factor to zero and solve for x
2x - 5 = 0 ⇒ 2x = 5 ⇒ x =
x - 5 = 0 ⇒ x = 5
Let the average profit or loss in year 2006 be x millions,
The average profit for the 8-year period, is the total sum of the profits (or losses) of each year, divided by 8:
so we have:
x=8-10.45=-2.45
Answer: the loss in 2006, was 2.45 million dollars
The average profit for the 8-year period, is the total sum of the profits (or losses) of each year, divided by 8:
so we have:
x=8-10.45=-2.45
Answer: the loss in 2006, was 2.45 million dollars