Answer:
54+6x
Step-by-step explanation:
6(9+x)
Distribute the 6 to each term inside the parentheses
6*9 + 6*x
54+6x
Answer:
There should be 10 l of 25% orange juice and 5 l of 10% orange juice.
Step-by-step explanation:
Let the amount of the 25% orange juice be "x", while the amount of the 10% one be "y". The sum of these must be equal to 15 l, therefore:
The sum of the concentration of juice on each can must be equal to the final product, therefore:
We can now solve the system of equations as shown below:
There should be 10 l of 25% orange juice and 5 l of 10% orange juice.
Answer:
x=4
Step-by-step explanation:
X² - 2x - 35 = 0
x = <u>-(-2) +/- √((-2)² - 4(1)(-35))</u>
2(1)
x = <u>2 +/- √(4 + 140)</u>
2
x = <u>2 +/- √(144)
</u> 2<u>
</u>x = <u>2 +/- 12
</u> 2
x = 1 +/- 6
x = 1 + 6 x = 1 - 6
x = 7 x = -5
The answer is equal to {-5, 7}.
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