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IgorLugansk [536]

4 years ago

5

3.14•8.7•8.7•14.7 Round to the nearest hundreds

1 answer:

Trava [24]4 years ago

5 0

Answer:

3493.70

Step-by-step explanation:

if you multipy all these in a calculator you get a long number, look at the third digit behind the decimal, if its 5+ then make the second digit behind the decimal one number higher. If its 4 or under than keep the number the same. To round, cut off all the digits behind the second digit thats past the secimal

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On each request the ith of n possible books is the one chosen with probability pi. To make it quicker to find the book the next

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Answer:

attached below

Step-by-step explanation:

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3 years ago

Write the sentence as an equation.<br><br> 351 is 59 subtracted from m

tino4ka555 [31]

Is means equal to.

59 subtracted from m would be m-59

Answer: 351 = m - 59

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3 years ago

A tank contains 60 kg of salt and 1000 L of water. A solution of a concentration 0.03 kg of salt per liter enters a tank at the

charle [14.2K]

Answer:

$\dfrac{dy}{dt}=0.27-0.009y(t),$ y(0)=60kg$

Step-by-step explanation:

Volume of water in the tank = 1000 L

Let y(t) denote the amount of salt in the tank at any time t.

Initially, the tank contains 60 kg of salt, therefore:

y(0)=60 kg

<u />

<u>Rate In</u>

A solution of concentration 0.03 kg of salt per liter enters a tank at the rate 9 L/min.

$R_{in}$ =(concentration of salt in inflow)(input rate of solution)

$=(0.03\frac{kg}{liter})( 9\frac{liter}{min})=0.27\frac{kg}{min}$

<u>Rate Out</u>

The solution is mixed and drains from the tank at the same rate.

Concentration, $C(t)=\dfrac{Amount}{Volume} =\dfrac{y(t)}{1000}$

$R_{out}$ =(concentration of salt in outflow)(output rate of solution)

$=\dfrac{y(t)}{1000}* 9\dfrac{liter}{min}=0.009y(t)\dfrac{kg}{min}$

Therefore, the differential equation for the amount of Salt in the Tank at any time t:

$\dfrac{dy}{dt}=R_{in}-R_{out}\\\\\dfrac{dy}{dt}=0.27-0.009y(t),$ y(0)=60kg$

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4 years ago

Bag C is four times lighter than Bag A. Bag B is twice as heavy as Bag C. How much heavier is Bag A than Bag B ?

LiRa [457]

Answer:

Step-by-step explanation:

Current Weight Weight after adding Marbles

Giulio: 2x 2x + 10

Jim: x x + 5

You didn't post the options so hopefully you can determine the answer based on the info I provided above.

8 0

2 years ago

3/4 is 60% of what number

kifflom [539]

3/4 is 60% of what number= 45

5 0

4 years ago

Read 2 more answers