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Mixture Problem What amount of pure acid must be addedto 300 mL of a 50% acid solution to produce a 60% acidsolution?

89. Volume of a Box An open box is constructed from a 6 in. by10 in. sheet of cardboard by cutting a...

Diego bought some raisins and walnuts to make trail mix.  Raisins cost $4 a pound and walnuts cost $...

Find the slope of the line that goes through the given points.
(1.2) and (10,6)
Salact the corect ch...

Use the diagram to find the angle measures
of the triangle. Recall that the sum of the
angle measure...

All numbered streets runs parallel to each other. Both 3rd and 4th Streets are intersected by King A...

Using exponential notation, we can write the product5 # 5 # 5 # 5 # 5 # 5 as .

One often hears the expression ℓ "two points determine a line. ℓ" Find a vector equation of the line...

Solve the system of linear equations by substitution. Enter your answer as an ordered pair.
-2a -y=-...

Speed of a Skidding Car Police use the formulas  "30fdto estimate the speed s (in mi/h) at which a ...

1.Solve the system of two linear equations algebraically using substitution. 4x+6y= -22 
y+3x=1
2.Wo...

Perform the indicated calculations. 2(2 + 1 + 2) in Z3

The perimeter of the triangle shown to the right is 483 meters. Find the length of each side.
x mete...

A line has a slope of -3 and passes through the point (0,6). What is its equation in slope-intercept...

Determine whether the pair of lines is parallel, perpendicular, or neither.
y = 2x +9
y = 2x -7
Choo...

Perform the indicated calculations. 2100 in Z11

find ||u|| for the given exercise, and give a unit vector in the direction of u.

1. Which point could NOT be paired with
(4, 3) to create a function?
A. (0, 3)
В. (3, 1)
С. (2, 3)
D...

Hiro works two part time jobs in order to earn enough money to meet her obligations of at least $450...

Use the given conditions to write an equation for the line in point-slope form and in slope-intercep...

Power Produced by a Windmill When the wind blowswith speed √ km/h, a windmill with blade length 150 ...

) Graph: f(x) = -x² + x + 6. Find the (a)vertex and determine if it's a
maximum or minimum point, (b...

To find the x-intercept(s) of the graph of an equation, weset equal to 0 and solve for . So thex-int...

Proposition 10.4. Let Sc N. If S is infinite, then S does not have a largest (with respect to the
us...

The path of water from a hose on a fire tugboat can be approximated by the equation 
y = −0.0045x2 +...

Multiply. Write your answer in lowest te
4
5z
64z
822
8z?
25z
The simplified product is

103–124 ■ Solving Basic Equations Find all real solutions ofthe equation.

Calculate the mean and median of the data set below:
15, 12, 11, 19, 21, 13, 14, 16, 20, 19
mean: 16...

6 -1
Let A =| 0 -2
and B
. Compute (AB)". Show your work.
4
3

17. Which describes a feature of the function shown
on the graph above?
Time
A. Mark starts his trip...

Use reasoning other than converting to decimals, using common denominators, or cross multiplying to ...

Suppose gas costs $3.50 a gallon. We make a model for thecost C of buying x gallons of gas by writin...

33–44 ■ Using FOIL Multiply the algebraic expressions usingthe FOIL method, and simplify

7–14 ■ Factoring Common Factors Factor out the commonfactor.

A circle is centered at the origin (0, 0) and has a radius of 5 units.
a. Which points on the circle...

Find an equation of the line having the given slope and containing the given point.
Slope 7. through...

Determine whether the equation below has a one solutions, no solutions, or an infinite number of sol...

Find the largest value of x that satisfies:log6 (x2)-log6(x+1)=6
x=_________

Solve for x 2/5x + 3/4 = 9/10

 Answer in decimal form

Dominic went into a movie theater and bought 2 drinks and 5 candies, costing a total of $29.25. Colt...

You sign a simple discount promissory note for $7,000 at a discount rate of
3%, for 48 months. What ...

Determine (a) the area and (b) the perimeter of the quadrilateral. Note that the figure is not drawn...

We determined that the given quadratic approximation is a concave up parabola with b = -15 and a = 1...

Solve the system of linear equations by substitution. Enter your answer as an ordered pair.
4x-y = -...

The percent of US citizens that use the internet on a daily basis is shown on the graph, where the y...

Let <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>x</mi><mo> </mo><mi>mL</mi></math> of pure acid must be added to 300 mL of a 50% acid solution to produce a 60% acid solution.
Then,
<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>x</mi><mo>+</mo><mfrac><mn>50</mn><mn>100</mn></mfrac><mfenced><mn>300</mn></mfenced><mo>=</mo><mfrac><mn>60</mn><mn>100</mn></mfrac><mfenced><mrow><mi>x</mi><mo>+</mo><mn>300</mn></mrow></mfenced><mspace linebreak="newline"></mspace><mo>⇒</mo><mi>x</mi><mo>+</mo><mn>0</mn><mo>.</mo><mn>5</mn><mfenced><mn>300</mn></mfenced><mo>=</mo><mn>0</mn><mo>.</mo><mn>6</mn><mfenced><mrow><mi>x</mi><mo>+</mo><mn>300</mn></mrow></mfenced><mspace linebreak="newline"></mspace><mo>⇒</mo><mi>x</mi><mo>+</mo><mn>150</mn><mo>=</mo><mn>0</mn><mo>.</mo><mn>6</mn><mi>x</mi><mo>+</mo><mn>180</mn><mspace linebreak="newline"></mspace><mo>⇒</mo><mi>x</mi><mo>-</mo><mn>0</mn><mo>.</mo><mn>6</mn><mi>x</mi><mo>=</mo><mn>180</mn><mo>-</mo><mn>150</mn><mspace linebreak="newline"></mspace><mo>⇒</mo><mn>0</mn><mo>.</mo><mn>4</mn><mi>x</mi><mo>=</mo><mn>30</mn><mspace linebreak="newline"></mspace><mo>⇒</mo><mi>x</mi><mo>=</mo><mn>75</mn></math>...

Algebra

Math

Mixture Problem What amount of pure acid must be added to 300 mL of a 50% acid solution to produce a 60% acid solution?

Mixture Problem What amount of pure acid must be addedto 300 mL of a 50% acid solution to produce a 60% acidsolution?

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