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vodomira [7]
3 years ago
6

gary mixes a solution using two types of concentration of sale: .70 gallons of 5% and .30 gallons of 22% salt. what is the conce

ntration of the mixed solutions
Mathematics
1 answer:
wolverine [178]3 years ago
5 0

Answer:

10.1%

Step-by-step explanation:

The first thing we should do is calculate the total volume of the solution when mixing them would be:

0.7 + 0.3 = 1

Now, we have that the resulting concentration (x) would be equal to the sum of the multiplications between the volumes and the concentrations to be mixed, as follows:

x * 1 = 0.7 * 0.05 + 0.3 * 0.22

x = 0.035 + 0.066

x = 0.101

That is, the concentration of the resulting mixture would be 10.1% (0.101 * 100)

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Gelneren [198K]

Answer:

33 3/12

Step-by-step explanation:

i’m pretty sure this is right :)

8 0
3 years ago
Printer allows for optional settings with a panel of six​on-off switches in a row. how many different settings can she select if
Leokris [45]

There are 2×2×2×2×2×2 = 2⁶ = 64 possible settings.

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3 years ago
Solve the system of equations using substitution. Write the solution as an ordered pair.
IrinaK [193]

Answer:

  (-3, 3)

Step-by-step explanation:

Substitute for y:

  x+6 = -2x -3

  3x = -9 . . . . . . . add 2x -6 to both sides

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The solution is ...

  (x, y) = (-3, 3)

4 0
3 years ago
one number is four greater than another number.the sum of two numbers is 78.what are the two numbers?
g100num [7]

Answer:

Step-by-step explanation:

27

3 0
3 years ago
Screenshot of the question
tamaranim1 [39]

9514 1404 393

Answer:

  x = 1, x = 7

Step-by-step explanation:

You can see from the graph that the x-intercepts of f(x) are ...

  0 = f(-3)

  0 = f(3)

To find the corresponding values of x for f(x-4), we can solve ...

  0 = f(x -4)

  x -4 = -3   ⇒   x = 1

  x -4 = 3   ⇒   x = 7

The x-intercepts of the function after translation 4 units right are ...

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Your sketch will be the same curve moved 4 units to the right. (Add 4 to every x-value shown.)

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3 years ago
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