We are given that some water is added to a gallon of 10% saline to create 2% solution.
Let us assume x gallons of water is added in 10% of a gallon of saline.
Therefore,
10% of 1 gallon = 2 % of (solutions of x gallons of water + saline).
0.1 = 0.02 (x+1)
0.1 = 0.02x +0.02
Subtracting 0.02 from both sides, we get
0.1 -0.02= 0.02x +0.02 -0.02
0.08 = 0.02x
Dividing both sides by 0.02, we get
0.08/0.02 = 0.02x/0.02
<h3>x = 4.</h3><h3>Therefore, 4 gallons of water must be added to a gallon of 10% saline solution to create a 2% solution.</h3>
Answer:
answer is 4 goals per hour
Step-by-step explanation:
12 Divided by 3 is 4
Answer: x2+17x+3
Step-by-step explanation:
2x2+7x−x2+10x+3
=2x2+7x+−x2+10x+3
Combine Like Terms:
=2x2+7x+−x2+10x+3
=(2x2+−x2)+(7x+10x)+(3)
=x2+17x+3
Answer:
Step-by-step explanation:
distance =
Let:
(x₁ , y₁) = (0 , 5)
(x₂ , y₂) = (8 , 0)
Plug in the corresponding numbers to the corresponding variables:
Remember to follow PEMDAS. Solve the parenthesis first:
distance =
distance =
Solve for the powers next:
distance =
distance =
Simplify:
distance =
distance =
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