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2 years ago

Find the area of a square with sides of length 1/3 yard.

Mathematics

2 answers:

marshall27 [118]2 years ago

5 0

Answer:

Step-by-step explanation:

Area of a square is:

$A = a^{2}$ where a is the side

$(\frac{1}{3}^{2} ) = \frac{1}{9}$

nikklg [1K]2 years ago

3 0

Answer:

Step-by-step explanation:

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Andre and Elena are reading the same book over the 1 summer. Andre says he has read of the book. Elena ! says she has read 20 mo

ddd [48]

Answer: There are 175 pages in the book.

Step-by-step explanation:

If Elena read 20 more pages than Andre and she read 55 pages, to find out how much Andre read you have to:

55-20= the pages Andre read

55-20=35

Andre read 35 pages.

If Andre read 1/5 of the book, then to find how many pages are in the book, you have to multiply 35 x 5. (Multiply by the reciprocal)

35 x 5= 175

There are 175 pages in the book.

7 0

3 years ago

What is the result of converting 0.5 cups to fled ounces> ( remember that 1 cup = 8 fluid ounces)

frez [133]

.5 cups is equal to 1/2 cup.
Half of 1 cup equals 4 fluid ounces.

8 0

3 years ago

Convert 50 watts to kilowatts

kap26 [50]

Answer:

0.05 kilowatts

8 0

3 years ago

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A large tank is filled to capacity with 300 gallons of pure water. brine containing 5 pounds of salt per gallon is pumped into t

Licemer1 [7]

If $A(t)$ is the amount of salt in the tank at time $t$ , then the rate at which this amount changes over time is given by the ODE

$A'(t)=\dfrac{3\text{ gal}}{1\text{ min}}\cdot\dfrac{5\text{ lb}}{1\text{ gal}}-\dfrac{3\text{ gal}}{1\text{ min}}\cdot\dfrac{A(t)\text{ lb}}{300+(3-3)t\text{ gal}}$

$A'(t)+\dfrac1{100}A(t)=15$

We're told that the tank initially starts with no salt in the water, so $A(0)=0$ .

Multiply both sides by an integrating factor, $e^{t/100}$ :

$e^{t/100}A'(t)+\dfrac1{100}e^{t/100}A(t)=15e^{t/100}$
$\left(e^{t/100}A(t)\right)'=15e^{t/100}$
$e^{t/100}A(t)=1500e^{t/100}+C$
$A(t)=1500+Ce^{-t/100}$

Since $A(0)=0$ , we have

$0=1500+C\implies C=-1500$

so that the amount of salt in the tank over time is given by

$A(t)=1500(1-e^{-t/100})$

After 10 minutes, the amount of salt in the tank is

$A(10)=1500(1-e^{-1/10})\approx142.74\text{ lb}$

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4 years ago

At Central High School, there are 48 football players and 20 cheerleaders. What is the ratio of cheerleaders to football players

Ahat [919]

Answer:

5 : 12

Step-by-step explanation:

Cheerleaders : football players

20 : 48

5 : 12

6 0

4 years ago

Read 2 more answers