Answer:
11 L of 20% juice and 4 L of 5% juice
Step-by-step explanation:
Let
x L = amount of 20% juice
y L = amount of 5% juice
<u>20% juice:</u>
Amount = x L
Amount of juice L
<u>5% juice:</u>
Amount = y L
Amount of juice L
<u>16% juice:</u>
Amount = 15 L
Amount of juice L
We mixed x L of 20% juice with y L of 5% juice to get 15 L of 16% juice, so
and
From the first equation:
Substitute it into the second equation:
The formula for a semi-circle is 3.14*d / 2 + the triangle
and d= 20 because the triangle is a equilateral so 3.14*20=62.8 and divide by 2 for it is the half of the circle 62.8 / 2 = 31.4 and add the triangle 31.4+40 because of the 2 sides 31.4+40=70.4
Four hundred three and six hundred eight thousandths.
Answer:
-8x + 6
Step-by-step explanation:
Subtract "5x-2" from "-3x + 4". Set the equation.
(-3x + 4) - (5x - 2) = Answer (A)
First, distribute -1 to all terms within the second parenthesis.
-3x + 4 - 5x + 2 = A
A = -5x - 3x + 4 + 2
Simplify. Combine like terms (terms with the same amount of variables).
A = (-5x - 3x) + (4 + 2)
A = -8x + 6
-8x + 6 is your answer, or the first answer choice.
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Answer:
For A:
Draw a number line with a dot on 3
For B:
Draw a number line connecting points at -3 and 10/3. Open dot an 10/3, and closed dot at -3
Intersection: x = 3
Step-by-step explanation:
A = {x : -8 < 5x + 2 = 17, x belongs to I}
-8 < 5x + 2 = 17
-10 < 5x = 15
-2 < x = 3
It's only x = 3
B = {x : -2 <= 7 + 3x < 17, x belongs to R}
-9《3x < 10
-3《x < 10/3
Since there's only one value in A and that also lies in B, the intersection is at x = 3