<u>Statement </u> <u>Reason</u>
<u> </u> Given
Subtract 9 from both the sides
<u></u><u> </u> Subtracting same number will not affect equation
Simplification
Multiplying by 5 both the sides
x= 10 By simplifying both the sides
Thus we solved the equation and got x =10 as answer.
Answer:
-4 and d
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Complete question :
The Hiking Club is taking another trip. The hike leader's watch shows that they gained 296 feet in altitude from their starting position. Their altitude is now 285 feet, but there is no record of their starting altitude. Write and solve an equation to represent this situation and find their starting altitude.
Answer:
Expression :
285 = x + 296
Starting altitude, x = - 11 feets
Step-by-step explanation:
Let starting position = x
Altitude gained = 296 feets
Final attitude = 285 feets
The starting altitude could be obtained by the expression :
Final altitude = starting altitude + Altitude gained
285 = x + 296
Solve for x, to obtain starting altitude ;
285 - 296 = x + 296 - 296
-11 = x
Hence, starting altitude is - 11 feets
Make a proportion of the diameter over the circumference.
185 feet / 580 feet = x / 10 feet
580x=1850
x= about 3.2
Diameter= about 3.2 feet
Hope this helps :)
Answer:
Step-by-step explanation:
Let x be the height ..... then the base = 2x + 2
So we have
Area = (1/2) (base) (height)
20 = (1/2)(2x + 2)(x) simplify
20 = x (x + 1)
20 = x^2 + x subtract 20 from both sides
x^2 + x - 20 = 0 factor
(x + 5) ( x - 4) = 0
Only the second factor makes sense
x - 4 = 0 add 4 to both sides
x = 4 ft and this is the height
And the base = 2(4) + 2 = 10 ft