Answer:
5 hours 49min
Step-by-step explanation:
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The club can buy 5 computers with $3472
Step-by-step explanation:
The number of computers which can be bought from the given amount will be calculated by dividing the amount by price of one computer.
Given
Total amount = $3472
Price of one computer =$680
The number of computers will be:
As the number of an item cannot be in decimal it will be rounded off to 5.
The club can buy 5 computers with $3472
Keywords: Price per unit, pricing
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Answer:
x = 5
Step-by-step explanation:
The area (A) o a rectangle is calculated as
A = lb ( l is length and b the breadth ), thus
x² + x - 12 × = 126 ← factor the quadratic
(x + 4)(x - 3) × = 126 ← cancel the common factor (x - 3)
(x + 4)(x + 9) = 126 ← expand factors using FOIL
x² + 13x + 36 = 126 ( subtract 126 from both sides )
x² + 13x - 90 = 0 ← in standard form
(x + 18)(x - 5) = 0 ← in factored form
Equate each factor to zero and solve for x
x + 18 = 0 ⇒ x = - 18
x - 5 = 0 ⇒ x = 5
However x > 0 ⇒ x = 5