Answer:
12ft/min = 720ft/hr
Step-by-step explanation:
you just mulitply 12 by 60 because there are 60min in an hour.
Answer:
x = - 4 , x = - 3
Step-by-step explanation:
- 7x = x^2 + 12
Take all terms to one side of equation.
x^2 + 7x + 12 = 0
Find which 2 numbers multiply to give 12 and add to give 7.
a × b = 12
a + b = 7
a = 4
b = 3
Split the middle term using these 2 numbers.
x^2 + 4x + 3x + 12 = 0
Factorise each pair of terms separately.
x ( x + 4 ) + 3 ( x + 4 ) = 0
Bring out common factor of ( x + 4 ) and factorise.
( x + 4 ) ( x + 3 ) = 0
Using the Null factor law, make the expressions in each pair of parentheses equal 0.
x + 4 = 0
x = - 4
AND
x + 3 = 0
x = - 3
THEREFORE:
x = - 4 , x = - 3
Answer:
201.5x-y=-6
Step-by-step explanation:
−6x−2y=−1618x+6y=48
Collect like terms
-6x+1618x-2y-6y=-48
1612x-8y=-48
Divide through by 8
1612x/8-8y/8=-48/8
201.5x-y=-6
Answer:
Step-by-step explanation:
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Answer: The Answer is (4,-6)
Step-by-step explanation:
