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Olenka [21]
4 years ago
14

.4x=.5x-30 solve for x

Mathematics
1 answer:
Nookie1986 [14]4 years ago
5 0

Answer:

x=300

Step-by-step explanation:

Multiply both sides by 10

0.4x·10=0.5x·10-30·10

Refine

4x=5x-300

Subtract 5x from both sides

4x-5x=5x-300-5x

Simplify

-x=-300

Divided both sides by -1

-x/-1=--300/-1

Simplify this and you will get x=300

Hope this Helps

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Bezzdna [24]

Answer:

x=9

Step-by-step explanation:

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-x       -x

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8 0
3 years ago
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NEED HELP WITH THIS PROBLEM!!!!!!
zzz [600]

Answer:

  \displaystyle\frac{\sqrt[4]{3x^2}}{2y}

Step-by-step explanation:

It can work well to identify 4th powers under the radical, then remove them.

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3 0
4 years ago
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algol [13]

Answer:

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Step-by-step explanation:

The mass flow rate dQ(t)/dt = mass flowing in - mass flowing out

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Let Q(t) be the mass present at any time, t. The concentration at any time ,t is thus Q(t)/volume = Q(t)/10. Since water drains at a rate of 4 L/min, the mass flow out is thus, Q(t)/10 g/L × 4 L/min = 2Q(t)/5 g/min.

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Since the salt just begins to be pumped in, the initial mass of salt in the tank is zero. So Q(0) = 0

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3 0
3 years ago
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Serjik [45]

Answer:

Step-by-step explanation:

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8 0
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elena-14-01-66 [18.8K]

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----------------------------

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